{"id":253803,"date":"2025-07-12T07:28:04","date_gmt":"2025-07-12T07:28:04","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=253803"},"modified":"2025-07-12T07:28:06","modified_gmt":"2025-07-12T07:28:06","slug":"the-major-muscle-involved-in-as-action-is-called-the-_","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/12\/the-major-muscle-involved-in-as-action-is-called-the-_\/","title":{"rendered":"The major muscle involved in as action is called the _"},"content":{"rendered":"\n<p>The major muscle involved in as action is called the <strong>_<\/strong><\/p>\n\n\n\n<p> A protagonist <\/p>\n\n\n\n<p>B synergist <\/p>\n\n\n\n<p>C fixator <\/p>\n\n\n\n<p>D prime mover <\/p>\n\n\n\n<p>E antagonist<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is <strong>D. Prime mover<\/strong>.<\/p>\n\n\n\n<p>In human anatomy, muscles work together in a coordinated manner to produce movement. The prime mover, also known as the <strong>agonist<\/strong>, is the muscle that is primarily responsible for initiating and carrying out a specific action. For example, when you perform a bicep curl, the <strong>biceps brachii<\/strong> is the prime mover as it is the muscle mainly responsible for flexing the arm.<\/p>\n\n\n\n<p>Muscles do not work in isolation; they often rely on other muscles to support the movement. These muscles can be classified into several types, including:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Synergists<\/strong>: These muscles assist the prime mover by contributing additional force or by reducing unwanted movement. For instance, in the bicep curl, the <strong>brachialis<\/strong> muscle acts as a synergist to help the biceps lift the weight.<\/li>\n\n\n\n<li><strong>Antagonists<\/strong>: These muscles oppose the action of the prime mover. For example, when the biceps contract to flex the arm, the <strong>triceps brachii<\/strong> is the antagonist as it works to extend the arm. Antagonists provide balance and control, ensuring that movement does not occur too quickly or forcefully.<\/li>\n\n\n\n<li><strong>Fixators<\/strong>: These muscles stabilize a joint or body part so that the prime mover can function more effectively. In the case of a bicep curl, muscles in the shoulder, like the <strong>rotator cuff<\/strong>, act as fixators to prevent the shoulder from moving during the exercise.<\/li>\n<\/ol>\n\n\n\n<p>Therefore, the <strong>prime mover<\/strong> is the muscle primarily responsible for a particular action, while synergists, antagonists, and fixators support or counterbalance the movement in different ways.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The major muscle involved in as action is called the _ A protagonist B synergist C fixator D prime mover E antagonist The correct answer and explanation is: The correct answer is D. Prime mover. In human anatomy, muscles work together in a coordinated manner to produce movement. The prime mover, also known as the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-253803","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=253803"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253803\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=253803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=253803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=253803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}