{"id":204719,"date":"2025-03-22T13:43:39","date_gmt":"2025-03-22T13:43:39","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=204719"},"modified":"2025-03-22T13:43:41","modified_gmt":"2025-03-22T13:43:41","slug":"what-is-the-name-of-serous-membrane-that-covers-thoracic-cavity","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/22\/what-is-the-name-of-serous-membrane-that-covers-thoracic-cavity\/","title":{"rendered":"What is the name of serous membrane that covers thoracic cavity"},"content":{"rendered":"\n<p>What is the name of serous membrane that covers thoracic cavity?<\/p>\n\n\n\n<p>a) Myocardium<br>b) Pericardium<br>c) Pleura<br>d) Lining membrane<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is:<\/p>\n\n\n\n<p><strong>c) Pleura<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The <strong>pleura<\/strong> is a serous membrane that lines the thoracic cavity and surrounds the lungs. It consists of two layers: the <strong>parietal pleura<\/strong> and the <strong>visceral pleura<\/strong>.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Parietal Pleura<\/strong>: This is the outer layer that lines the inner surface of the thoracic wall, the diaphragm, and the mediastinum. It is in direct contact with the chest cavity&#8217;s interior.<\/li>\n\n\n\n<li><strong>Visceral Pleura<\/strong>: This inner layer is directly attached to the surface of the lungs, covering them. It also folds over to become the parietal pleura as it continues around the thoracic cavity.<\/li>\n<\/ol>\n\n\n\n<p>Between these two layers is the <strong>pleural cavity<\/strong>, which contains a small amount of pleural fluid. This fluid acts as a lubricant, allowing the lungs to expand and contract smoothly during breathing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Functions of the Pleura:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Protection<\/strong>: The pleura acts as a protective layer for the lungs, preventing damage from external friction as the lungs expand and contract with each breath.<\/li>\n\n\n\n<li><strong>Reduction of Friction<\/strong>: The pleural fluid inside the pleural cavity reduces friction between the parietal and visceral layers, ensuring that the lungs move smoothly against the chest wall during respiration.<\/li>\n\n\n\n<li><strong>Facilitates Breathing<\/strong>: The pleura\u2019s ability to create a sealed environment around the lungs aids in maintaining negative pressure, which is crucial for lung expansion during inhalation and for keeping the lungs properly inflated.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Why the Other Options Are Incorrect:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>a) Myocardium<\/strong>: The myocardium is the muscular layer of the heart, not a serous membrane. It is responsible for the heart&#8217;s contractile function.<\/li>\n\n\n\n<li><strong>b) Pericardium<\/strong>: The pericardium is a serous membrane that surrounds the heart, not the thoracic cavity. It has two layers: the fibrous pericardium (outer layer) and the serous pericardium (inner layer).<\/li>\n\n\n\n<li><strong>d) Lining membrane<\/strong>: This term is too general and does not specifically refer to the pleura, pericardium, or any other specific membrane.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What is the name of serous membrane that covers thoracic cavity? a) Myocardiumb) Pericardiumc) Pleurad) Lining membrane The correct answer and explanation is : The correct answer is: c) Pleura Explanation: The pleura is a serous membrane that lines the thoracic cavity and surrounds the lungs. It consists of two layers: the parietal pleura and [&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-204719","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204719","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=204719"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204719\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=204719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=204719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=204719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}