{"id":145917,"date":"2022-03-20T02:33:07","date_gmt":"2022-03-19T21:03:07","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/myelin-structure-composition-types-function-and-mechanism\/"},"modified":"2022-03-20T02:33:07","modified_gmt":"2022-03-19T21:03:07","slug":"myelin-structure-composition-types-function-and-mechanism","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/","title":{"rendered":"Myelin &#8211; Structure, Composition, Types, Function and Mechanism"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 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\">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\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><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><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#What_is_Myelin_Sheath_Cells_of_the_Nervous_System\" title=\"What is Myelin Sheath?; Cells of the Nervous System\">What is Myelin Sheath?; Cells of the Nervous System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#Structure_of_Myelin_Sheath\" title=\"Structure of Myelin Sheath\">Structure of Myelin Sheath<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#Composition_of_Myelin\" title=\"Composition of Myelin\">Composition of Myelin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#Glial_Cell\" title=\"Glial Cell\">Glial Cell<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#Myelination\" title=\"Myelination\">Myelination<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#The_Function_of_Myelination\" title=\"The Function of Myelination\">The Function of Myelination<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/myelin\/#Mechanism_of_Action\" title=\"Mechanism of Action\">Mechanism of Action<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Myelin_Sheath_Cells_of_the_Nervous_System\"><\/span>What is Myelin Sheath?; Cells of the Nervous System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The myelin sheath is a layer of cells that wraps around the axons of some of the cells in the nervous system. The myelin sheath helps to speed the transmission of electrical signals along the axon. It also helps to protect the axon from damage.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-145916 size-full\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/myelin-structure-composition-types-function-and-mechanism.jpg\" alt=\"\" width=\"606\" height=\"428\" srcset=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/myelin-structure-composition-types-function-and-mechanism.jpg?v=1647723784 606w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/myelin-structure-composition-types-function-and-mechanism-300x212.jpg?v=1647723784 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Structure_of_Myelin_Sheath\"><\/span>Structure of Myelin Sheath<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A myelin sheath is an electrically insulating layer that surrounds the axon of some nerve cells. It is formed by glial cells and consists of Schwann cells and oligodendrocytes. Myelin sheaths are important for the conduction of nerve impulses. They help to increase the speed of transmission of the nerve impulse and also ensure that the impulse is conducted in a uniform and consistent manner. Myelin sheaths are also important for the insulation of the nerve cells.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Composition_of_Myelin\"><\/span>Composition of Myelin<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The myelin sheath is a membrane that surrounds the axon of some nerve cells. It is composed of lipids and proteins. The myelin sheath helps to speed the transmission of nerve impulses along the axon.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Glial_Cell\"><\/span>Glial Cell<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A glial cell is a type of cell that is found in the central nervous system (CNS) and the peripheral nervous system (PNS). Glial cells provide support and insulation for nerve cells, or neurons. There are several types of glial cells, including astrocytes, oligodendrocytes, and microglia.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Myelination\"><\/span>Myelination<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>is a process that results in the formation of a myelin sheath around an axon. The myelin sheath is an electrically insulating layer that helps to speed up the transmission of nerve impulses along the axon. The myelin sheath is formed by Schwann cells, which wrap themselves around the axon.<\/p>\n<p>Myelination begins early in fetal development and continues throughout adolescence. Damage to the myelin sheath can cause a loss of nerve function.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Function_of_Myelination\"><\/span>The Function of Myelination<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The myelin sheath is a white fatty tissue that surrounds the axon of a neuron. The myelin sheath acts as an insulator, which speeds up the conduction of the nerve impulse along the axon. The myelin sheath is produced by the Schwann cells.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mechanism_of_Action\"><\/span>Mechanism of Action<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The mechanism of action of a drug is the way in which it produces its pharmacological effects. This can be divided into two categories: pharmacokinetic and pharmacodynamic. Pharmacokinetic effects are the drug&#8217;s effects on the body&#8217;s absorption, distribution, metabolism and excretion. Pharmacodynamic effects are the drug&#8217;s effects on the body&#8217;s cells and tissues.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is Myelin Sheath?; Cells of the Nervous System The myelin sheath is a layer of cells that wraps around [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Myelin - Structure, Composition, Types, Function and Mechanism","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Learn about myelin topic of Biology in details explained by subject experts on infinitylearn.com. 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