{"id":26512,"date":"2022-03-21T16:00:00","date_gmt":"2022-03-21T10:30:00","guid":{"rendered":"https:\/\/connect.healthkart.com\/?p=26512"},"modified":"2022-05-25T10:40:24","modified_gmt":"2022-05-25T05:10:24","slug":"understanding-the-immune-system-how-it-works","status":"publish","type":"post","link":"https:\/\/www.healthkart.com\/connect\/understanding-the-immune-system-how-it-works\/","title":{"rendered":"Understanding the Immune System: How It Works"},"content":{"rendered":"\n<p>The body is under constant attack and pressure from outside forces, including viruses, bacteria, toxins, fungi and even parasites. But for the most part, we don\u2019t really see the effects of these microscopic invaders. Why is that? It\u2019s because the parts of your immune system (including the innate and <strong>adaptive immune system<\/strong>) are working together to keep these pathogens in check. How does the<strong> immune system <\/strong>work and what are the important facets of it? Let\u2019s find out.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.healthkart.com\/connect\/understanding-the-immune-system-how-it-works\/#Parts_of_the_Immune_System_Explained\" >Parts of the Immune System Explained<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.healthkart.com\/connect\/understanding-the-immune-system-how-it-works\/#About_the_Types_of_Immunity\" >About the Types of Immunity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.healthkart.com\/connect\/understanding-the-immune-system-how-it-works\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Parts_of_the_Immune_System_Explained\"><\/span><strong>Parts of the<\/strong><strong> Immune System Explained<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Let\u2019s start with the parts of the <strong>immune system <\/strong>and what they do:<\/p>\n\n\n\n<p><strong>1. Skin<\/strong><\/p>\n\n\n\n<p>Your skin is the first line of your <strong>immune system<\/strong>. It is a physical barrier since the skin is not easily breached. Not only does it behave like a wall for microbes but it also releases proteins that can discourage the growth of pathogens. Additionally, within certain layers of skin, immune cells are waiting for the lucky few microbes that do get through. Since the various bacteria and germs get through any opening they find, it is very important to disinfect any breaks in your skin (such as from scratches or cuts).&nbsp;<\/p>\n\n\n\n<p><strong>2. Bone Marrow<\/strong><\/p>\n\n\n\n<p>You may not know this but the bone marrow is where most of the cells of the innate and adaptive immune systems are created. The bone marrow is the production site for many important cells in your body, starting with stem cells that can turn into specific cells later on. These include:&nbsp;<\/p>\n\n\n\n<p><strong>Neutrophils:<\/strong> a type of white blood cell that kills and eats pathogens. These are the most abundant type of white blood cell and are part of the innate <strong>immune system<\/strong><\/p>\n\n\n\n<p><strong>Basophils:<\/strong> they release enzymes that attack bacteria and other pathogens. These are also part of the generalized innate <strong>immune system<\/strong>.<\/p>\n\n\n\n<p><strong>Dendritic Cells:<\/strong> they act as the messenger between the innate and adaptive immune systems. These cells inform your killer T cells of what exactly they need to look for in the invaders.&nbsp;<\/p>\n\n\n\n<p><strong>Macrophage:<\/strong> it surrounds, destroys, and clears out dead or dying cells. These macrophages can also be the reason you get a fever since they signal strongly to the body, which in turn, causes inflammation.<\/p>\n\n\n\n<p><strong>B and T cells:<\/strong> they are highly specific cells that can attack very specific antigens. They are the heroes of your <strong>adaptive immune system<\/strong>. These cells require more time to react since they are specific in what they target.<\/p>\n\n\n\n<p><strong>3. Blood<\/strong><\/p>\n\n\n\n<p>The blood is like your immune&#8217;s public transport system. All the white blood cells in your body (including those mentioned above) are able to circulate the entirety of your organs through the bloodstream. We can get a good idea of how active the <strong>immune system <\/strong>is by taking a sample of blood, this is why blood tests are so important.&nbsp;<\/p>\n\n\n\n<p><strong>4. The Lymph Nodes<\/strong><\/p>\n\n\n\n<p>The lymph nodes and system act as vessels for your immune system. The lymphatic system is able to pass cells and information between your organs and bloodstream. This makes it a perfect reservoir for a lot of your immune system cells to converge in. The presence of the lymph nodes across the body means that when a pathogen is detected at some distant organ, the immune cells receive the information and leave the nodes. They begin hunting down the invader as quickly as possible.<\/p>\n\n\n\n<p><strong>5. Mucosal Tissues<\/strong><\/p>\n\n\n\n<p>The mucosal tissue occurs at any entry point from where bacteria may get through to the inside of your body easily. This includes points of entry like the nose, mouth, and stomach. Immune system cells are present in these spots; always keeping an eye out for invaders that try to enter your body.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"About_the_Types_of_Immunity\"><\/span><strong>About the Types of Immunity<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>You may have noticed that we distinguished between different types of immunity here. That is because the immune system is far more complex than we initially thought. It is made up of several types:&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>Innate Immune System:<\/strong> This is what you are born with. It is a general, all-purpose reaction against any kind of pathogen or toxin entering the body. This includes the skin and general immune system cells which attack anything they assume is not part of your body.&nbsp;<\/li><li><strong>Adaptive Immune System:<\/strong> This is the more specialized and targeted part of your immune system. It learns to recognise specific invaders and produces the specific proteins to destroy that invader. But it takes time to work; hence, your innate immune system starts working immediately while the<strong> adaptive immune system <\/strong>is still figuring out how to kill the invader.<\/li><li><strong>Passive Immune System:<\/strong> This is when you get<a href=\"https:\/\/connect.healthkart.com\/types-of-immunity-exploring-the-immune-system\/\" target=\"_blank\" rel=\"noreferrer noopener\"> immune protection<\/a> from some outside sources. This can be from blood plasma transplants or more commonly, it occurs from mother to child. When the child is in the womb, they do not produce their own immune cells; the mother\u2019s immune cells can transfer to the child through the placenta.&nbsp;<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>This is an overview of how most of the <strong>immune system<\/strong> works; the details are much more complex and wondrous! For example, some people may not produce enough white blood cells, which often leads to a <strong>weak immune system<\/strong>. At other times, people suffering from an infection may require help through the use of medicine. Either way, we need to keep our body and immune system in top form to be able to handle infections with resilience.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The body is under constant attack and pressure from outside forces, including viruses, bacteria, toxins, fungi and even parasites. But for the most part, we don\u2019t really see the effects of these microscopic invaders. Why is that? It\u2019s because the parts of your immune system (including the innate and adaptive immune system) are working together [&hellip;]<\/p>\n","protected":false},"author":192,"featured_media":26515,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[441],"tags":[997],"secondary_tag":[],"class_list":{"0":"post-26512","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-immunity","8":"tag-immunity","9":"entry"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Immune System Explained: What you Need to Know - HealthKart<\/title>\n<meta name=\"description\" content=\"Our immune system is quite complex. 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