{"id":181065,"date":"2025-01-09T13:32:16","date_gmt":"2025-01-09T13:32:16","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=181065"},"modified":"2025-01-09T13:32:18","modified_gmt":"2025-01-09T13:32:18","slug":"which-is-a-physiological-description-rather-than-an-anatomical-one","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/09\/which-is-a-physiological-description-rather-than-an-anatomical-one\/","title":{"rendered":"Which is a physiological description rather than an anatomical one"},"content":{"rendered":"\n
    \n
  1. Which is a physiological description rather than an anatomical one?
    a. There are fenestrations (openings) in the epithelial cells of capillary walls
    b. The walls of blood capillaries are composed of a thin epithelium.
    c. The muscles of the thigh are composed of skeletal muscle tissue.
    d . The muscles of the intestinal wall contract slowly and involuntarily.<\/li>\n\n\n\n
  2. A term that means “toward the attached end of a limb is
    a. lateral
    b. superficial
    c . proximal
    d .distal<\/li>\n\n\n\n
  3. During skeletal muscle contraction
    a. thin filaments slide across thick filaments
    b. myosin heads interact with tropomyosin
    c the H band increases in size
    d.Ca2+ associates with tropomyosin<\/li>\n<\/ol>\n\n\n\n

    The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n

    1. Which is a physiological description rather than an anatomical one?<\/h3>\n\n\n\n

    Answer: d. The muscles of the intestinal wall contract slowly and involuntarily.<\/strong><\/p>\n\n\n\n

      \n
    • Explanation<\/strong>:
      Anatomical descriptions focus on the physical structure of the body and its parts, whereas physiological descriptions focus on the functions and processes.<\/li>\n\n\n\n
    • Option a<\/strong> (There are fenestrations in the epithelial cells of capillary walls) is an anatomical description, as it refers to the structure of capillary walls.<\/li>\n\n\n\n
    • Option b<\/strong> (The walls of blood capillaries are composed of a thin epithelium) is an anatomical description, as it describes the tissue structure of capillaries.<\/li>\n\n\n\n
    • Option c<\/strong> (The muscles of the thigh are composed of skeletal muscle tissue) is anatomical because it describes the composition of the thigh muscles.<\/li>\n\n\n\n
    • Option d<\/strong> describes a function of the muscles of the intestinal wall, specifically the process of contraction, which is physiological. It mentions the action (contracting slowly and involuntarily), which is a functional aspect of the muscle rather than its structure.<\/li>\n<\/ul>\n\n\n\n

      2. A term that means “toward the attached end of a limb is<\/h3>\n\n\n\n

      Answer: c. proximal<\/strong><\/p>\n\n\n\n

        \n
      • Explanation<\/strong>:<\/li>\n\n\n\n
      • Proximal<\/strong> refers to being closer to the point of attachment of a limb or the trunk of the body. For example, the shoulder is proximal to the wrist.<\/li>\n\n\n\n
      • Distal<\/strong> means farther from the point of attachment. For example, the wrist is distal to the elbow.<\/li>\n\n\n\n
      • Lateral<\/strong> refers to being farther from the midline of the body.<\/li>\n\n\n\n
      • Superficial<\/strong> refers to being closer to the surface of the body.<\/li>\n<\/ul>\n\n\n\n

        3. During skeletal muscle contraction<\/h3>\n\n\n\n

        Answer: a. thin filaments slide across thick filaments<\/strong><\/p>\n\n\n\n

          \n
        • Explanation<\/strong>:<\/li>\n\n\n\n
        • During skeletal muscle contraction, the interaction between actin (thin filaments) and myosin (thick filaments) leads to muscle shortening. Myosin heads form cross-bridges with actin filaments and slide the thin filaments over the thick filaments, causing the sarcomere to shorten and the muscle to contract.<\/li>\n\n\n\n
        • Option b<\/strong> (myosin heads interact with tropomyosin) is incorrect because tropomyosin covers the binding sites on actin and must be moved by calcium ions (through troponin) for contraction to occur.<\/li>\n\n\n\n
        • Option c<\/strong> (the H band increases in size) is incorrect because during contraction, the H band (the region containing only thick filaments) decreases in size.<\/li>\n\n\n\n
        • Option d<\/strong> (Ca2+ associates with tropomyosin) is partially correct, but it’s not the direct mechanism of muscle contraction. Calcium ions bind to troponin, not tropomyosin, causing a conformational change that moves tropomyosin and exposes the binding sites for myosin on actin.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          The Correct Answer and Explanation is : 1. Which is a physiological description rather than an anatomical one? Answer: d. The muscles of the intestinal wall contract slowly and involuntarily. 2. A term that means “toward the attached end of a limb is Answer: c. proximal 3. During skeletal muscle contraction Answer: a. thin filaments […]<\/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-181065","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/181065","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=181065"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/181065\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=181065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=181065"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=181065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}