{"id":2334,"date":"2020-09-21T12:18:20","date_gmt":"2020-09-21T10:18:20","guid":{"rendered":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/"},"modified":"2021-03-21T19:39:22","modified_gmt":"2021-03-21T18:39:22","slug":"structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types","status":"publish","type":"page","link":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/","title":{"rendered":"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types"},"content":{"rendered":"<span class=\"block-heading\" id=\"header_1\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Muscle tissue types<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_1\">\n\n\n<ul class=\"wp-block-list\"><li><strong>Skeletal muscle:<\/strong>&nbsp;Anchored to the bone and is used for skeletal movement such as locomotion and in maintaining posture (male: 42%; female: 36% of total body mass)<\/li><li>Smooth muscle:&nbsp;Within the walls of organs and structures such as the oesophagus, stomach, intestines, bronchi, uterus, urethra, bladder, blood vessels, and the arrector pili in the skin<\/li><li><strong>Cardiac muscle:<\/strong>&nbsp;\u201cMyocardium\u201d, having a similar structure to skeletal muscle and found only in the heart<\/li><\/ul>\n\n\n<\/span><span class=\"block-heading\" id=\"header_2\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Fiber types<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_2\">\n\n\n<ul class=\"wp-block-list\"><li>Type I (slow-twitch)<\/li><li>Type IIa (fast-twitch)<\/li><li>Type IIx\/IIb (fast-twitch)<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">They can be distinguished by<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Their morphology<\/li><li>ATPase activity<\/li><li>Metabolism<\/li><li>Immunological and genetic characteristics of the heavy chain of myosin<\/li><li>Type IIx is presented in human<\/li><li>Type IIb presented in animals, in rodents<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Characterization of various types of muscle fibers<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"pure-table\"><tbody><tr><td><strong>Characteristic<\/strong><\/td><td><strong>Type I (slow-twitch)<\/strong><\/td><td><strong>Type IIa (fast-twitch)<\/strong><\/td><td><strong>Type IIx (fast-twitch)<\/strong><\/td><\/tr><tr><td><strong>Force production<\/strong><\/td><td>Low<\/td><td>Intermediate<\/td><td>High<\/td><\/tr><tr><td><strong>Contraction speed<\/strong><\/td><td>Slow<\/td><td>Fast<\/td><td>Very Fast<\/td><\/tr><tr><td><strong>Fatigue resistance<\/strong><\/td><td>High<\/td><td>Moderate<\/td><td>Low<\/td><\/tr><tr><td><strong>Major storage fuel<\/strong><\/td><td>Triglycerides<\/td><td>Creatine-P, glycogen<\/td><td>Creatine-P, glycogen<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles.png\" target=\"_blank\" title=\"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"799\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles-1024x799.png\" alt=\"\" class=\"wp-image-4947\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles-1024x799.png 1024w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles-300x234.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles-768x600.png 768w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles.png 1053w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption><strong>Figure 1. Skeletal muscle and its composition<\/strong><\/figcaption><\/figure>\n\n\n<\/span><span class=\"block-heading\" id=\"header_3\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Muscle proteins<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_3\">\n\n\n<p class=\"wp-block-paragraph\"><strong>Muscle fibres<\/strong>:\u00a0100\u03bcm in diameter and run the full length of the muscle. One fibre = approximately 1000 myofibrils.<br><strong>Plasma membrane:<\/strong>\u00a0sarcolemma, electrically excitable.<br><strong>Cytosol:<\/strong>\u00a0sarcoplasm; rich in glycogen, ATP, creatine phosphate and glycolytic enzymes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u201cSliding-filament model\u201d<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The main protein of thick filament is&nbsp;<strong>myosin<\/strong>, in which:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Is spontaneously assembled into filaments<\/li><li>Is an ATPase<\/li><li>Binds to the polymerized form of actin<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Proteins of the thin filaments:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Actin<\/li><li>Troponin complex<\/li><li>Tropomyosin<\/li><\/ul>\n<\/span><div id=\"the_titles\" style=\"display:none;\"><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Muscle tissue types<\/h4><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Fiber types<\/h4><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Muscle proteins<\/h4><\/div>","protected":false},"excerpt":{"rendered":"<p>Muscle tissue types Skeletal muscle:&nbsp;Anchored to the bone and is used for skeletal movement such as locomotion and in maintaining posture (male: 42%; female: 36% of total body mass) Smooth muscle:&nbsp;Within the walls of organs and structures such as the oesophagus, stomach, intestines, bronchi, uterus, urethra, bladder, blood vessels, and the arrector pili in the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":278,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2334","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types &#8211; Meddists<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/\",\"name\":\"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types &#8211; Meddists\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/meddists.com\\\/learn\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/muscles-1024x799.png\",\"datePublished\":\"2020-09-21T10:18:20+00:00\",\"dateModified\":\"2021-03-21T18:39:22+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/#primaryimage\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/muscles.png\",\"contentUrl\":\"https:\\\/\\\/meddists.com\\\/learn\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/muscles.png\",\"width\":1053,\"height\":822},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/meddists.com\\\/learn\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pre-clinical\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Biochemistry\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Biochemistry of the tissues\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"Sports Biochemistry\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/biochemistry\\\/biochemistry-of-the-tissues\\\/sports-biochemistry\\\/\"},{\"@type\":\"ListItem\",\"position\":6,\"name\":\"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/#website\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/\",\"name\":\"Meddists\",\"description\":\"Let&#039;s Get Studying\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/meddists.com\\\/learn\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types &#8211; Meddists","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/","url":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/","name":"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types &#8211; Meddists","isPartOf":{"@id":"https:\/\/meddists.com\/learn\/#website"},"primaryImageOfPage":{"@id":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/#primaryimage"},"image":{"@id":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/#primaryimage"},"thumbnailUrl":"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles-1024x799.png","datePublished":"2020-09-21T10:18:20+00:00","dateModified":"2021-03-21T18:39:22+00:00","breadcrumb":{"@id":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/#primaryimage","url":"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles.png","contentUrl":"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/muscles.png","width":1053,"height":822},{"@type":"BreadcrumbList","@id":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/structure-of-skeletal-muscle-muscle-proteins-and-various-muscle-types\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"http:\/\/meddists.com\/learn\/"},{"@type":"ListItem","position":2,"name":"Pre-clinical","item":"https:\/\/meddists.com\/learn\/pre-clinical\/"},{"@type":"ListItem","position":3,"name":"Biochemistry","item":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/"},{"@type":"ListItem","position":4,"name":"Biochemistry of the tissues","item":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/"},{"@type":"ListItem","position":5,"name":"Sports Biochemistry","item":"https:\/\/meddists.com\/learn\/pre-clinical\/biochemistry\/biochemistry-of-the-tissues\/sports-biochemistry\/"},{"@type":"ListItem","position":6,"name":"Structure of Skeletal Muscle, Muscle Proteins and Various Muscle Types"}]},{"@type":"WebSite","@id":"https:\/\/meddists.com\/learn\/#website","url":"https:\/\/meddists.com\/learn\/","name":"Meddists","description":"Let&#039;s Get Studying","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/meddists.com\/learn\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/comments?post=2334"}],"version-history":[{"count":6,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2334\/revisions"}],"predecessor-version":[{"id":10782,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2334\/revisions\/10782"}],"up":[{"embeddable":true,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/278"}],"wp:attachment":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/media?parent=2334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}