{"id":268431,"date":"2023-12-14T09:00:00","date_gmt":"2023-12-14T08:00:00","guid":{"rendered":"https:\/\/sherpas.com\/blog\/?p=268431"},"modified":"2025-05-13T17:33:26","modified_gmt":"2025-05-13T15:33:26","slug":"systeme-immunitaire-humain","status":"publish","type":"post","link":"https:\/\/sherpas.com\/blog\/systeme-immunitaire-humain\/","title":{"rendered":"Tout savoir sur le syst\u00e8me immunitaire humain \ud83e\uddec"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Black Widow, Flash, Superman\u2026 On connait tous des h\u00e9ros fictifs, mais on oublie parfois que <strong>notre corps abrite un bouclier invisible : le syst\u00e8me immunitaire<\/strong>. En plus d\u2019\u00eatre le BFF de ton organisme, il te d\u00e9fend contre les menaces qui cherchent \u00e0 perturber ton bien-\u00eatre. Plut\u00f4t impressionnant, non\u202f? Aujourd\u2019hui, on va te parler en d\u00e9tail de son fonctionnement et d\u00e9finir clairement cette notion de SVT. Pr\u00eat ? C\u2019est parti !\u200b \ud83d\ude80<\/p>\n\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/cours\/medecine\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/09\/changer-de-medecin-traitant.jpg\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/09\/changer-de-medecin-traitant.jpg\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/09\/changer-de-medecin-traitant.jpg\"\n                                    alt=\"changer de m\u00e9decin traitant\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Besoin d&rsquo;aide en m\u00e9decine ? Prends des cours particuliers avec un Sherpa et exerce le m\u00e9tier dont tu r\u00eaves depuis toujours ! \u200b\ud83e\uddd1\u200d\u2695\ufe0f<\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                Cartonne en cours !\n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h2 class=\"wp-block-heading\" id=\"le-systeme-immunitaire-cest-quoi\">Le syst\u00e8me immunitaire, c\u2019est quoi ?\u200b \ud83e\udd14<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"definition-et-role\">D\u00e9finition et r\u00f4le \ud83d\udee1\ufe0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Si tu es au lyc\u00e9e, tu as s\u00fbrement entendu parler de la sp\u00e9cialit\u00e9 SVT. En classe de premi\u00e8re g\u00e9n\u00e9rale, le chapitre intitul\u00e9 <strong>\u00ab Le fonctionnement du syst\u00e8me immunitaire humain \u00bb<\/strong> en a fait p\u00e2lir plus d\u2019un. Termes m\u00e9dicaux pr\u00e9cis, sch\u00e9mas de toutes les couleurs, listes de cellules longues comme le bras\u2026 Il est vrai que ce n\u2019est pas la le\u00e7on la plus simple !\u200b \u200b\ud83d\ude1c<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"500\" height=\"281\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-1.gif\" alt=\"Un homme, confus, te demande de r\u00e9p\u00e9ter ce qui a \u00e9t\u00e9 dit.\" class=\"wp-image-268460\" style=\"width:536px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udc49 N\u00e9anmoins, elle reste accessible \u00e0 tous. Afin de t\u2019aider \u00e0 te pr\u00e9parer au mieux et \u00e0 d\u00e9crocher une super note \u00e0 ton contr\u00f4le, commen\u00e7ons par<strong> d\u00e9finir clairement ce qu\u2019est le syst\u00e8me immunitaire et le r\u00f4le qu\u2019il joue <\/strong>au sein de ton organisme.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u200b\ud83d\udcd6 D\u00e9finition<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Selon le <em>Larousse<\/em>, le syst\u00e8me immunitaire d\u00e9signe<strong> \u00ab l&rsquo;ensemble des organes, tissus, cellules et mol\u00e9cules assurant l&rsquo;immunit\u00e9 d&rsquo;un organisme \u00bb<\/strong>. Son fonctionnement repose sur une vari\u00e9t\u00e9 de cellules qui diff\u00e8rent par leur forme, leurs fonctions, leur capacit\u00e9 \u00e0 se multiplier (division cellulaire) et \u00e0 se transformer (diff\u00e9renciation).<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 Les acteurs cl\u00e9s de ce processus sont<strong> les globules blancs (les leucocytes)<\/strong> qui circulent via le sang et la lymphe, un liquide transport\u00e9 par le syst\u00e8me lymphatique.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1280\" height=\"960\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?func=bound&amp;w=1024&amp;h=960\" alt=\"La lymphe et les globules.\" class=\"wp-image-268461\" style=\"width:534px;height:auto\" srcset=\"https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=1280 1280w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=300 300w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=1024 1024w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=768 768w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=167 167w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=363 363w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=288 288w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=495 495w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=265 265w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=60 60w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd<strong> Rappel :<\/strong> l\u2019immunit\u00e9 est un ensemble de m\u00e9canismes qui prot\u00e8ge ton organisme des agents infectieux, des cellules canc\u00e9reuses ou des dommages tissulaires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Afin d\u2019assurer le fonctionnement du syst\u00e8me immunitaire,<strong> tous ces corps coop\u00e8rent et communiquent entre eux<\/strong>. Pour ce faire, les cellules partagent des messages via des r\u00e9cepteurs. Ils sont ensuite v\u00e9hicul\u00e9s par des prot\u00e9ines : les lymphokines.\u200b \ud83c\udfc3<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"295\" height=\"231\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/08\/franklin-delano-roosevelt-run.gif?func=bound&amp;w=295&amp;h=231\" alt=\"Un l\u00e9zard court sur l'eau.\" class=\"wp-image-262925\" style=\"width:413px;height:auto\"\/><figcaption class=\"wp-element-caption\"><em>Un lymphokine en plein boulot<\/em><\/figcaption><\/figure>\n<\/div>\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>\ud83c\udf0d Premi\u00e8re : tout savoir sur la <a href=\"https:\/\/sherpas.com\/blog\/programme-svt-premiere-specialite\/\">sp\u00e9cialit\u00e9 SVT<\/a> !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-deux-immunites-du-corps\">Les deux immunit\u00e9s du corps \u200b\ud83d\udd0e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le syst\u00e8me immunitaire se divise <strong>en deux sous-syst\u00e8mes qui peuvent s\u2019associer <\/strong>pour lutter contre les infections (snif, quelle belle amiti\u00e9\u200b \ud83e\udd79). Il existe l\u2019immunit\u00e9 naturelle (ou inn\u00e9e) et l\u2019immunit\u00e9 adaptative. Voyons ce qui les diff\u00e9rencie !\u200b \ud83d\udc47<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"le-systeme-inne\">Le syst\u00e8me inn\u00e9\u200b \ud83d\udc76<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">En SVT, l&rsquo;immunit\u00e9 inn\u00e9e renvoie aux<strong> m\u00e9canismes de d\u00e9fense qui entrent en action imm\u00e9diatement<\/strong> ou dans les heures suivant l&rsquo;apparition d&rsquo;un antig\u00e8ne dans l&rsquo;organisme. Ces m\u00e9canismes incluent des barri\u00e8res physiques comme :<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>la peau,<\/li>\n<li>les substances chimiques pr\u00e9sentes dans le sang,<\/li>\n<li>les cellules du syst\u00e8me immunitaire qui ciblent les cellules \u00e9trang\u00e8res.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 En somme, on parle de \u00ab syst\u00e8me inn\u00e9 \u00bb lorsque ces m\u00e9canismes de d\u00e9fense sont <strong>pr\u00e9sents chez un individu d\u00e8s sa naissance<\/strong>.<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>\ud83e\ude78 <a href=\"https:\/\/sherpas.com\/blog\/globules-blancs-rouges\/\">Pourquoi donner son sang<\/a> ? D\u00e9couvre-le !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"le-systeme-adaptatif\">Le syst\u00e8me adaptatif\u200b \ud83d\udc40<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019immunit\u00e9 adaptative, quant \u00e0 elle,<strong> r\u00e9pond \u00e0 un antig\u00e8ne sp\u00e9cifique<\/strong>, soit une substance que le syst\u00e8me immunitaire humain reconna\u00eet comme \u00e9trang\u00e8re. Une fois que l&rsquo;antig\u00e8ne est identifi\u00e9, le syst\u00e8me adaptatif mobilise des cellules con\u00e7ues pour le mettre K.O\u200b. \u200b\ud83d\udc4a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"496\" height=\"360\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-3.gif\" alt=\"Un homme frappe quelqu'un et le met K.O.\" class=\"wp-image-268462\" style=\"width:460px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 De plus,<strong> cette immunit\u00e9 poss\u00e8de une \u00ab m\u00e9moire \u00bb<\/strong> qui lui permet de s\u2019am\u00e9liorer pour r\u00e9pondre plus efficacement aux futurs antig\u00e8nes. Bref, elle s\u2019adapte ! \u2728<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part\u2019 global #1 = CPG1\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Agathe2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Agathe<\/p>                          <p class=\"push__teachers-school\">ENS Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emilie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emilie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Antoine2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Antoine<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">18\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Olivier2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Olivier<\/p>                          <p class=\"push__teachers-school\">La Sorbonne<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">13\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier cours particulier est offert ! <span role=\"img\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><!-- notionvc: 91b6b7d7-50f2-46f4-ae1f-ecbabe834aad --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont pass\u00e9s par les meilleures \u00e9coles et universit\u00e9s.<!-- notionvc: 21bb66b6-b36d-4ce8-8950-173722d75a1e --><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: #ffffff; border-color: ; background-color: \"\n\n                                    >\n                                        J&rsquo;EN PROFITE MAINTENANT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"le-systeme-inne-1%e2%83%a3\">Le syst\u00e8me inn\u00e9 1\ufe0f\u20e3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour emp\u00eacher la p\u00e9n\u00e9tration des germes, l\u2019immunit\u00e9 naturelle s\u2019appuie sur des barri\u00e8res physiques, des cellules et trois types de prot\u00e9ines. Voyons \u00e7a de plus pr\u00e8s\u202f!\u200b \ud83d\ude80<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-barrieres-physiques\">Les barri\u00e8res physiques\u200b \ud83d\udea7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le premier rempart de ton corps, c\u2019est ta peau\u202f! Tes barri\u00e8res physiques naturelles comprennent <strong>les couches superficielles des cellules mortes de ton \u00e9piderme<\/strong> et les substances antibact\u00e9riennes pr\u00e9sentes dans ta sueur comme le lysozyme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd<strong> <\/strong>D\u2019autres substances te prot\u00e8gent. Tu as notamment :<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>le mucus \u00e9pais, s\u00e9cr\u00e9t\u00e9 par des cellules de ton corps,<\/li>\n<li>les acides forts pr\u00e9sents dans ton estomac,<\/li>\n<li>la lactoferrine, une glycoprot\u00e9ine qui a des effets bact\u00e9ricides.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">Si tu te m\u00e9langes les pinceaux en cours ou que tu veux pr\u00e9parer tes examens, tu peux prendre des <a href=\"https:\/\/sherpas.com\/cours\/svt\">cours particuliers de SVT<\/a> avec un Sherpa !\u200b \ud83d\ude09<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>\ud83d\udc40 <a href=\"https:\/\/sherpas.com\/blog\/oeil\/\">L\u2019\u0153il<\/a> : un chef-d\u2019\u0153uvre de la nature complexe !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-cellules\">Les cellules\u200b \ud83e\uddd0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ici, les stars sont les phagocytes\u202f! Ces cellules charg\u00e9es d\u2019\u00e9liminer les germes sont repr\u00e9sent\u00e9es par<strong> les globules blancs dits \u00ab polynucl\u00e9aires neutrophiles \u00bb et les macrophages<\/strong>. Ces deux types de cellules sont impliqu\u00e9s dans la phagocytose, soit la destruction des cellules l\u00e9s\u00e9es, des bact\u00e9ries ou des particules \u00e9trang\u00e8res.\u200b \u200b\ud83d\udca5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccc Il existe d\u2019autres cellules essentielles comme les :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<table id=\"tablepress-2237\" class=\"tablepress tablepress-id-2237\">\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">Natural killer<br \/>\n<br \/>\n<\/td><td class=\"column-2\">Lymphocytes reconnaissant et tuant les cellules infect\u00e9es par des virus.<br \/>\n<br \/>\n<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Mastocytes<\/td><td class=\"column-2\">Cellules contenant des granulations de substances chimiques.<br \/>\n<br \/>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 En m\u00e9decine, <strong>une \u00ab granulation \u00bb est une petite masse arrondie<\/strong>, d&rsquo;origine pathologique. Ici, le terme se r\u00e9f\u00e8re aux particules pr\u00e9sentes \u00e0 l&rsquo;int\u00e9rieur des cellules.<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>\ud83e\uddec Comprendre le <a href=\"https:\/\/sherpas.com\/blog\/cycle-cellulaire\/\">cycle cellulaire<\/a> en une le\u00e7on !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-organes\">Les organes \u200b\ud83e\uddcd\u200d\u2642\ufe0f<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"le-complement\">Le compl\u00e9ment \u2795<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Autre membre de la communaut\u00e9 <s>de l\u2019anneau<\/s> de l\u2019immunit\u00e9 inn\u00e9e : le compl\u00e9ment. <strong>Ce syst\u00e8me enzymatique est important dans la destruction des antig\u00e8nes <\/strong>et comprend au moins 20 prot\u00e9ines diff\u00e9rentes. Autant te dire que c\u2019est une grande famille !\u200b \ud83d\ude31<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"480\" height=\"360\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-4.gif\" alt=\"La famille Simpson chante \u00e0 l'unisson.\" class=\"wp-image-268463\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd<strong> <\/strong>Lorsque des germes s\u2019introduisent dans ton organisme, les prot\u00e9ines du compl\u00e9ment s\u2019y fixent l\u2019une apr\u00e8s l\u2019autre. Ensuite, <strong>une r\u00e9action en cha\u00eene est provoqu\u00e9e :<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>les phagocytes sont attir\u00e9s hors de la circulation sanguine,<\/li>\n<li>ils sont dirig\u00e9s vers le germe (chimiotaxie),<\/li>\n<li>ils s&rsquo;y attachent et l&rsquo;ing\u00e8rent,<\/li>\n<li>ils font une br\u00e8che dans sa membrane ext\u00e9rieure,<\/li>\n<li>cela entra\u00eene son \u00e9clatement (lyse).<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-cytokines\">Les cytokines\u200b \ud83d\ude37<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Parmi les organes, tu as \u00e9galement les cytokines. Ce sont des prot\u00e9ines qui sont s\u00e9cr\u00e9t\u00e9es par les cellules du syst\u00e8me immunitaire et <strong>qui jouent un r\u00f4le essentiel dans la communication cellulaire et la r\u00e9gulation<\/strong> de divers processus biologiques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 Comme le compl\u00e9ment, elles se composent de diff\u00e9rents \u00e9l\u00e9ments :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<table id=\"tablepress-2238\" class=\"tablepress tablepress-id-2238\">\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">Interleukines<\/td><td class=\"column-2\">Groupe de substances naturelles produites par les globules blancs.<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Interf\u00e9rons<\/td><td class=\"column-2\">Ils sont produits en r\u00e9ponse \u00e0 des infections virales.<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Chimiokines<\/td><td class=\"column-2\">Elles agissent comme des signaux chimiques pour guider les cellules.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd<strong> Note :<\/strong> souvent, les cellules portent bien leur nom. Les <em>natural killer<\/em> sont des pros de l\u2019\u00e9limination et les interf\u00e9rons sont les rois pour interf\u00e9rer dans la propagation d\u2019un virus.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg\" alt=\"Un natural killer.\" class=\"wp-image-268464\" style=\"width:542px;height:auto\" srcset=\"https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=1024 1024w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=300 300w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=768 768w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=167 167w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=363 363w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=288 288w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=495 495w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=265 265w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-5.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=60 60w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Natural killer &#8211; Source : National Institute of Allergy and Infectious Diseases.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"les-anticorps-naturels\">Les anticorps naturels\u200b \ud83d\udc96<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Enfin, tu as les anticorps naturels, des substances d\u00e9fensives <strong>capables de cibler plusieurs antig\u00e8nes <\/strong>distincts simultan\u00e9ment. \u200b\ud83c\udfaf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 Comme elles sont constamment pr\u00e9sentes dans la circulation sanguine, <strong>elles sont pr\u00eates \u00e0 r\u00e9agir d\u00e8s qu\u2019un antig\u00e8ne entre en contact avec elles<\/strong>. Un peu comme des matelots post\u00e9s \u00e0 la vigie pour surveiller la mer !<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"480\" height=\"270\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-6.gif\" alt=\"La vigie panique en voyant un iceberg.\" class=\"wp-image-268465\" style=\"width:506px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Cependant,<strong> la liaison entre ces anticorps et les antig\u00e8nes est faible<\/strong>, ce qui limite leur efficacit\u00e9. Contrairement aux anticorps qui sont produits en r\u00e9ponse \u00e0 la pr\u00e9sence d\u2019un antig\u00e8ne particulier, les anticorps naturels n\u2019offrent qu\u2019une premi\u00e8re ligne de d\u00e9fense.<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part\u2019 global #2 = CPG2\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                 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Paris Ulm<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n      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class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Sophie2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Sophie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Bordeaux<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">12\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Noemie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">No\u00e9mie<\/p>                          <p class=\"push__teachers-school\">M2 en droit \u00e0 Assas<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin d&rsquo;un prof particulier ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 9b5ed38b-ea2e-4d3c-a3bb-f0091c2eedd2 --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont l\u00e0 pour t&rsquo;aider \u00e0 progresser !<\/p>\n<p>&nbsp;<\/p>\n<p><!-- notionvc: 20490bdd-6579-484b-9d99-0ff0bc1aa8e7 --><\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"le-systeme-adaptif-2%e2%83%a3\">Le syst\u00e8me adaptif 2\ufe0f\u20e3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenant, passons \u00e0 l\u2019autre super-h\u00e9ros de ton organisme\u202f! Il entre en action lorsque les d\u00e9fenses de l\u2019immunit\u00e9 naturelle ne parviennent pas \u00e0 \u00e9liminer l\u2019agent infectieux et<strong> il inclut les lymphocytes T et B<\/strong> et les substances qu\u2019ils produisent : les anticorps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\u00c0 l\u2019inverse du syst\u00e8me immunitaire inn\u00e9, <strong>son efficacit\u00e9 est renforc\u00e9e<\/strong> lorsqu\u2019il est confront\u00e9 \u00e0 un agent pathog\u00e8ne qu\u2019il a d\u00e9j\u00e0 rencontr\u00e9 par le pass\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-lymphocytes\">Les lymphocytes \u200b\u200b\ud83e\uddeb<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-lymphocytes-t\">Les lymphocytes T<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ces cellules ont plusieurs fonctions. Par exemple :<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>elles facilitent l&rsquo;activit\u00e9 des autres cellules du syst\u00e8me immunitaire,<\/li>\n<li>elles aident les macrophages \u00e0 \u00e9liminer les microbes phagocyt\u00e9s,<\/li>\n<li>elles permettent aux lymphocytes B de fabriquer les anticorps,<\/li>\n<li>elles aident les natural killer \u00e0 tuer des cellules infect\u00e9es par des virus.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 D\u2019ailleurs, les lymphocytes T cytotoxiques sont sp\u00e9cialement con\u00e7us pour tuer les cellules infect\u00e9es par des virus. Sympa, non ?\u200b \ud83d\ude0c<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg\" alt=\"Lymphocyte T.\" class=\"wp-image-268466\" style=\"width:430px;height:auto\" srcset=\"https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=800 800w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=300 300w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=768 768w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=167 167w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=363 363w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=288 288w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=495 495w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=265 265w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/systeme-immunitaire-humain-8.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=60 60w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><em>On ne dirait pas un flocon de neige ?<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"les-lymphocytes-b\">Les lymphocytes B<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ces cellules sont directement produites par la moelle osseuse et doivent :<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>\u00e9laborer des anticorps avec l&rsquo;aide des lymphocytes T,<\/li>\n<li>s\u00e9cr\u00e9ter des cytokines.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd<strong> Note :<\/strong> les plasmocytes sont la forme mature des lymphocytes B. Ce sont les seules cellules capables de produire des anticorps. On les retrouve principalement dans les organes et les tissus lympho\u00efdes de l&rsquo;organisme.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg\" alt=\"Lymphocyte B.\" class=\"wp-image-268467\" style=\"width:411px;height:auto\" srcset=\"https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=1024 1024w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=300 300w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=768 768w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=167 167w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=363 363w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=288 288w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=495 495w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=265 265w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/12\/Systeme-immunitaire-humain-7.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=60 60w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Wow, belle couleur turquoise !<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"les-anticorps\">Les anticorps<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les anticorps (ou immunoglobulines) sont aussi <strong>des \u00e9l\u00e9ments cl\u00e9s du syst\u00e8me immunitaire adaptatif<\/strong>. Ces prot\u00e9ines sont con\u00e7ues de mani\u00e8re sp\u00e9cifique pour cibler des antig\u00e8nes particuliers. Parmi les diff\u00e9rents types d\u2019immunoglobulines, tu as :<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>les IgM qui circulent principalement dans le sang,<\/li>\n<li>les IgG qui p\u00e9n\u00e8trent dans tous les tissus de l&rsquo;organisme,<\/li>\n<li>les lgA qui prot\u00e8gent les organes contre les infections.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 D\u2019ailleurs, les IgG jouent un r\u00f4le essentiel dans la protection du nouveau-n\u00e9 !<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part\u2019 global #3 = CPG3\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emilie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emilie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Hugo2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Hugo<\/p>                          <p class=\"push__teachers-school\">Insa Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Alma2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Alma<\/p>                          <p class=\"push__teachers-school\">ENS Paris-Saclay<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/David2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">David<\/p>                          <p class=\"push__teachers-school\">EDHEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            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xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin de cours particuliers ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 27874cb7-7cca-4c68-a2e3-ea8000cbb55b --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p><span style=\"color: #48b378;\">4 points<\/span> de plus sur ta <span style=\"color: #48b378;\">moyenne<\/span> avec nos profs Sherpas ! <span role=\"image\" aria-label=\"\ud83d\udcc8\">\ud83d\udcc8<\/span><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"les-cellules-et-organes-du-systeme-immunitaire\">Les cellules et organes du syst\u00e8me immunitaire\u200b \ud83d\udd2c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-organes-de-limmunite\">Les organes de l\u2019immunit\u00e9 \u200b\ud83e\udec0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En SVT, on \u00e9voque souvent<strong> <\/strong>les organes lympho\u00efdes, <a href=\"https:\/\/sherpas.com\/blog\/anatomie-humaine\/\">des organes<\/a> dans lesquels les cellules immunitaires naissent ou sont stock\u00e9es. Ils sont class\u00e9s en deux cat\u00e9gories principales :<strong> les organes lympho\u00efdes primaires et les organes lympho\u00efdes secondaires.<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-organes-lymphoides-primaires\">Les organes lympho\u00efdes primaires<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<table id=\"tablepress-2239\" class=\"tablepress tablepress-id-2239\">\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">Moelle osseuse<\/td><td class=\"column-2\">Substance \u00e0 l\u2019int\u00e9rieur des os et lieu o\u00f9 les cellules souches se transforment en diverses cellules immunitaires, dont les lymphocytes B.<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Thymus<\/td><td class=\"column-2\">Glande situ\u00e9e \u00e0 la partie inf\u00e9rieure du cou qui aident les lymphocytes T \u00e0 d\u00e9velopper leur capacit\u00e9 \u00e0 reconna\u00eetre les antig\u00e8nes.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-organes-lymphoides-secondaires\">Les organes lympho\u00efdes secondaires<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<table id=\"tablepress-2240\" class=\"tablepress tablepress-id-2240\">\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">Ganglions lymphatiques<\/td><td class=\"column-2\">Ils sont situ\u00e9s \u00e0 divers endroits et sont essentiels pour le filtrage et la surveillance des substances \u00e9trang\u00e8res.<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Rate<\/td><td class=\"column-2\">Elle \u00e9limine les vieux globules rouges et pr\u00e9sente les antig\u00e8nes aux cellules immunitaires.<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Amygdales et plaques de Peyer<\/td><td class=\"column-2\">Pr\u00e9sentes dans les muqueuses, elles aident \u00e0 prot\u00e9ger les voies respiratoires et le syst\u00e8me digestif.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\u200b\ud83d\udc49 En clair, les organes lympho\u00efdes participent <strong>\u00e0 la production, \u00e0 la maturation et \u00e0 l&rsquo;activation des cellules immunitaires<\/strong>, en particulier des lymphocytes T et B.<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>\ud83e\udec0 <a href=\"https:\/\/sherpas.com\/blog\/lifestyle\/prendre-soin-de-toi\/sante\/\">Don d\u2019organes<\/a> : les r\u00e8gles \u00e0 suivre !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-differentes-lignees-cellulaires\">Les diff\u00e9rentes lign\u00e9es cellulaires\u200b \ud83e\uddec<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-granulocytes-ou-polynucleaires\">Les granulocytes ou polynucl\u00e9aires \u2705<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Les granulocytes (ou polynucl\u00e9aires) circulent \u00e0 travers les tissus, via le sang. Ils constituent<strong> la premi\u00e8re ligne de d\u00e9fense contre les infections<\/strong> et sont \u00e0 l\u2019origine des :<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>\u00e9osinophiles et des neutrophiles, qui \u00e9liminent les micro-organismes,<\/li>\n<li>basophiles, qui te d\u00e9fendent contre les parasites et les r\u00e9actions allergiques.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-monocytes\">Les monocytes \u2705<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Aussi transport\u00e9s par le sang, les monocytes <strong>se diff\u00e9rencient en divers types cellulaires, dont les macrophages<\/strong>. Ils d\u00e9truisent les bact\u00e9ries par phagocytose et sont tr\u00e8s importants dans le d\u00e9clenchement de r\u00e9actions immunes sp\u00e9cifiques.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"la-lignee-lymphoide\">La lign\u00e9e lympho\u00efde \u2705<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Sans surprise, on retrouve les lymphocytes T, <strong>qui traversent le thymus avant de rejoindre les organes lympho\u00efdes secondaires<\/strong>, et les lymphocytes B, qui portent des immunoglobulines sur leur membrane et qui s\u00e9cr\u00e8tent des anticorps.<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>\ud83e\uddec <a href=\"https:\/\/sherpas.com\/blog\/immunologie\/\">L\u2019immunologie<\/a> : comprendre comment ton corps se prot\u00e8ge !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"quels-sont-les-dereglements-du-systeme-immunitaire\">Quels sont les d\u00e9r\u00e8glements du syst\u00e8me immunitaire ?\u200b \ud83d\ude45<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"allergies-et-hypersensibilite\">Allergies et hypersensibilit\u00e9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd R\u00e9actions excessives du syst\u00e8me immunitaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Production d&rsquo;IgE apr\u00e8s un premier contact avec un allerg\u00e8ne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Lib\u00e9ration d&rsquo;histamine lors de la r\u00e9exposition \u00e0 l&rsquo;allerg\u00e8ne.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u200b\ud83d\udca1 Le savais-tu ?<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>L\u2019immunoglobuline E est<strong> une classe d&rsquo;anticorps exclusive aux mammif\u00e8res<\/strong> qui a \u00e9t\u00e9 identifi\u00e9e en 1966 par Teruko Ishizaka et Kimishige Ishizaka. Ce dernier a d\u2019ailleurs \u00e9t\u00e9 r\u00e9compens\u00e9 du prix japonais de l\u2019an 2000 pour cette d\u00e9couverte !<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccc<strong> Note :<\/strong> l\u2019histamine est <strong>pr\u00e9sente dans la plupart des tissus animaux<\/strong> et son r\u00f4le est important dans les manifestations allergiques.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"maladies-auto-immunes\">Maladies auto-immunes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Dysfonctionnements du syst\u00e8me immunitaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Ce dernier s\u2019attaque aux constituants de l\u2019organisme.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p>\u21aa\ufe0f <strong>Exemple : <\/strong>les lymphocytes cytotoxiques d\u00e9truisent les cellules des \u00eelots de Langerhans, celles du pancr\u00e9as, ce qui conduit \u00e0 une forme de diab\u00e8te.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"cancers-du-systeme-immunitaire\">Cancers du syst\u00e8me immunitaire<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Transformation de cellules immunitaires en cellules canc\u00e9reuses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd La leuc\u00e9mie et le my\u00e9lome peuvent r\u00e9sulter de la transformation des lymphocytes B.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Les traitements innovants sont fond\u00e9s sur les cytokines et les anticorps monoclonaux.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p>\ud83d\udc49 <strong>My\u00e9lome :<\/strong> tumeur, souvent canc\u00e9reuse, de la moelle osseuse.<\/p>\n<p>\u200b\ud83d\udc49 <strong>Leuc\u00e9mie :<\/strong> augmentation des globules blancs dans le sang (cancer du sang).<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"deficits-immunitaires\">D\u00e9ficits immunitaires<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Li\u00e9s au patrimoine g\u00e9n\u00e9tique, affectant l&rsquo;immunit\u00e9 humorale, cellulaire (ou les deux).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Caus\u00e9s par des maladies opportunistes ou le Sida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u200b\ud83d\udccd Rend l&rsquo;organisme vuln\u00e9rable aux infections, notamment par des germes.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p>\u200b\ud83d\udccc<strong> Distinction : <\/strong>les d\u00e9ficits immunitaires primitifs sont li\u00e9s au patrimoine g\u00e9n\u00e9tique et se manifestent d\u00e8s l&rsquo;enfance. Les d\u00e9ficits immunitaires secondaires ont de multiples causes.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"conclusion\">Conclusion<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenant que tu sais tout sur le syst\u00e8me immunitaire humain et son fonctionnement, il ne te reste plus qu\u2019\u00e0 cartonner \u00e0 ton prochain exam. Si tu as besoin d\u2019aide dans tes r\u00e9visions, tu peux prendre des <a href=\"https:\/\/sherpas.com\/cours\/svt\/online\">cours particuliers de SVT en ligne<\/a> avec un Sherpa ! \u00c0 bient\u00f4t ! \ud83d\ude80<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;268431&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;7&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.4&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Tu as aim\u00e9 cet article ?&quot;,&quot;legend&quot;:&quot;4.4\\\/5 - (7 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Tout savoir sur le syst\u00e8me immunitaire humain \ud83e\uddec&quot;,&quot;width&quot;:&quot;125.1&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 125.1px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            4.4\/5 - (7 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Black Widow, Flash, Superman\u2026 On connait tous des h\u00e9ros fictifs, mais on oublie parfois que notre corps abrite (&#8230;)<\/p>\n","protected":false},"author":329,"featured_media":268468,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"category":[803,811],"tag":[317,79,354],"class_list":["post-268431","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apprendre-matiere","category-svt-biologie-2","tag-bac","tag-lycee","tag-premiere"],"acf":[],"_links":{"self":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/268431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/users\/329"}],"replies":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/comments?post=268431"}],"version-history":[{"count":0,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/268431\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media\/268468"}],"wp:attachment":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media?parent=268431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/category?post=268431"},{"taxonomy":"tag","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/tag?post=268431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}