{"id":145423,"date":"2022-03-20T01:51:58","date_gmt":"2022-03-19T20:21:58","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/cardiac-muscle-cells-structure-function-connection-organization\/"},"modified":"2022-04-16T14:39:51","modified_gmt":"2022-04-16T09:09:51","slug":"cardiac-muscle-cells-structure-function-connection-organization","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/biology\/cardiac-muscle\/","title":{"rendered":"Cardiac Muscle &#8211; Cells, Structure, Function, Connection &#038; Organization"},"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\/cardiac-muscle\/#What_is_a_Cardiac_Muscle_Definition\" title=\"What is a Cardiac Muscle Definition?\">What is a Cardiac Muscle Definition?<\/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\/cardiac-muscle\/#About_the_Cardiac_Muscle\" title=\"About the Cardiac Muscle\">About the Cardiac Muscle<\/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\/cardiac-muscle\/#Connection_and_Organization\" title=\"Connection and Organization\">Connection and Organization<\/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\/cardiac-muscle\/#Cardiac_Muscle_Cells\" title=\"Cardiac Muscle Cells\">Cardiac Muscle Cells<\/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\/cardiac-muscle\/#Intercalated_Discs\" title=\"Intercalated Discs\">Intercalated Discs<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Cardiac_Muscle_Definition\"><\/span>What is a Cardiac Muscle Definition?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A cardiac muscle is a muscle that is found in the heart. It is responsible for the contraction of the heart and the movement of blood throughout the body. The cardiac muscle is striated, meaning that it has bands of protein that run through it. This gives it its characteristic striped appearance. The cardiac muscle is also involuntary, meaning that it is not under our conscious control.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-145422 size-full\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/cardiac-muscle-cells-structure-function-connection-organization.jpg\" alt=\"\" width=\"606\" height=\"428\" srcset=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/cardiac-muscle-cells-structure-function-connection-organization.jpg?v=1647721314 606w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/cardiac-muscle-cells-structure-function-connection-organization-300x212.jpg?v=1647721314 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>Cardiac Muscle Structure and Cardiac Muscle Function<\/strong><\/span><\/p>\n<p>The heart is a muscular organ that pumps blood throughout the body. The heart has four chambers: two upper chambers (the atria) and two lower chambers (the ventricles). The heart muscle is called cardiac muscle.<\/p>\n<p>Cardiac muscle is composed of cardiac muscle cells, or cardiomyocytes. Cardiomyocytes are long, spindle-shaped cells with a single nucleus. The cells are connected to one another by special junctions called intercalated discs.<\/p>\n<p>Cardiac muscle cells are innervated by the autonomic nervous system. The autonomic nervous system controls the heart rate and the force of contraction.<\/p>\n<p>Cardiac muscle cells are powered by special cells called pacemaker cells. Pacemaker cells create an electrical current that causes the cardiac muscle cells to contract.<\/p>\n<p>The cardiac muscle cells are surrounded by a layer of connective tissue called the endocardium. The endocardium contains blood vessels that supply the cardiac muscle cells with nutrients and oxygen.<\/p>\n<p>The cardiac muscle cells are surrounded by a layer of connective tissue called the pericardium. The pericardium protects the heart and anchors the heart in the chest.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"About_the_Cardiac_Muscle\"><\/span>About the Cardiac Muscle<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The cardiac muscle is a type of muscle found in the heart. It is composed of cardiac muscle cells, which are striated and have the ability to contract rhythmically. The cardiac muscle cells are interconnected by special junctions, called intercalated discs, which allow the cells to transmit electrical impulses. This allows the cardiac muscle to contract as a unit, producing a regular heartbeat.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Connection_and_Organization\"><\/span>Connection and Organization<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Cardiac muscle is a type of muscle found in the heart. It is composed of cardiac muscle cells, which are striated, meaning they have visible stripes. These cells are arranged in a branching pattern that allows the heart to contract and pump blood throughout the body. Cardiac muscle cells are innervated by the autonomic nervous system, which means they can contract independently of the brain\u2019s control.<\/p>\n<p>Cardiac muscle cells are connected to one another by special junctions called intercalated discs. These discs allow the cells to communicate with one another and contract as a unit. The discs also help to ensure that the heart\u2019s cells stay in sync with one another, which is important for maintaining a regular heartbeat.<\/p>\n<p>Cardiac muscle is unique in that it can contract both rhythmically and forcefully. This allows the heart to pump blood both quickly and efficiently. Cardiac muscle cells can also regenerate if they are damaged, which is why heart disease can often be treated with surgery.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cardiac_Muscle_Cells\"><\/span>Cardiac Muscle Cells<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Cardiac muscle cells are striated muscle cells that make up the heart muscle. They are innervated by the autonomic nervous system, which controls their contraction. Cardiac muscle cells are unique in that they can contract both spontaneously and in response to electrical stimulation from the autonomic nervous system.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Intercalated_Discs\"><\/span>Intercalated Discs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Intercalated discs are thin, disc-shaped pieces of connective tissue that separate the individual muscle cells in a muscle group. They are composed of two layers of cells: an outer layer of muscle cells and an inner layer of cells called intercalated discs. These discs allow the individual muscle cells to contract as a unit, and they also help to transmit electrical signals from the brain to the muscles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a Cardiac Muscle Definition? A cardiac muscle is a muscle that is found in the heart. It is [&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":"Cardiac Muscle - Cells, Structure, Function, Connection & Organization","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Learn about cardiac muscle topic of Biology in details explained by subject experts on infinitylearn.com. Register free for online tutoring session to clear your doubts.","custom_permalink":"biology\/cardiac-muscle\/"},"categories":[11],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cardiac Muscle - Cells, Structure, Function, Connection &amp; Organization - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Learn about cardiac muscle topic of Biology in details explained by subject experts on infinitylearn.com. 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