Which of the following descriptions characterizes skeletal muscle tissue?
a. It contains striations.<\/p>\n\n\n\n
b. It contains uninucleate cells.<\/p>\n\n\n\n
c. It contains spindle-shaped cells.<\/p>\n\n\n\n
d. It contains intercalated discs.<\/p>\n\n\n\n
e. It contains branched cells.<\/p>\n\n\n\n
The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n The correct answer is:<\/p>\n\n\n\n a. It contains striations.<\/strong><\/p>\n\n\n\n Skeletal muscle tissue is one of the three main types of muscle tissue in the human body, alongside cardiac muscle<\/strong> and smooth muscle<\/strong>. It has several unique characteristics that distinguish it from the other two types.<\/p>\n\n\n\n Skeletal muscle tissue is characterized by striations, multinucleated cells, and cylindrical shape<\/strong>. It is voluntary<\/strong> muscle, meaning it is consciously controlled, unlike cardiac and smooth muscles, which function involuntarily. Its striations, caused by sarcomeres, make option (a)<\/strong> the correct answer.<\/p>\n","protected":false},"excerpt":{"rendered":" Which of the following descriptions characterizes skeletal muscle tissue?a. It contains striations. b. It contains uninucleate cells. c. It contains spindle-shaped cells. d. It contains intercalated discs. e. It contains branched cells. The correct answer and explanation is : The correct answer is: a. It contains striations. Explanation: Skeletal muscle tissue is one of the […]<\/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-204427","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204427","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=204427"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204427\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=204427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=204427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=204427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
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Skeletal muscle fibers are characterized by a striped, or striated<\/strong>, appearance under a microscope. These striations result from the highly organized arrangement of actin<\/strong> and myosin<\/strong> filaments within the muscle fibers, which form repeating units called sarcomeres<\/strong>. This structure allows skeletal muscle to contract efficiently and generate movement.<\/li>\n\n\n\n
Unlike cardiac or smooth muscle, skeletal muscle fibers are multinucleated<\/strong>. This is because they are formed by the fusion of multiple embryonic cells called myoblasts<\/strong> during development. Therefore, option b (It contains uninucleate cells)<\/strong> is incorrect.<\/li>\n\n\n\n
Skeletal muscle cells are long, cylindrical<\/strong>, and unbranched<\/strong>. In contrast, smooth muscle cells are spindle-shaped<\/strong> (option c<\/strong>) and cardiac muscle cells are branched<\/strong> (option e<\/strong>). Hence, both options c and e<\/strong> are incorrect.<\/li>\n\n\n\n
Intercalated discs are specialized junctions found only in cardiac muscle tissue<\/strong>. They allow electrical impulses to spread rapidly between cardiac muscle cells, enabling coordinated heart contractions. Since skeletal muscle does not<\/strong> have intercalated discs, option d<\/strong> is incorrect.<\/li>\n<\/ol>\n\n\n\nSummary<\/h3>\n\n\n\n