{"id":166652,"date":"2024-11-13T23:37:01","date_gmt":"2024-11-13T23:37:01","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=166652"},"modified":"2024-11-13T23:37:04","modified_gmt":"2024-11-13T23:37:04","slug":"which-receptor-paring-below-is-correct","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/13\/which-receptor-paring-below-is-correct\/","title":{"rendered":"Which receptor paring below is correct"},"content":{"rendered":"\n

Which receptor paring below is correct? <\/p>\n\n\n\n

a) nicotinic: norepinephrine <\/p>\n\n\n\n

b) nicotinic; acetylchline <\/p>\n\n\n\n

c) muscarinic: norepinephrine <\/p>\n\n\n\n

d) alpha 1: acetylcholine<\/p>\n\n\n\n

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

The correct answer is b) nicotinic; acetylcholine<\/strong>.<\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

The autonomic nervous system (ANS) regulates involuntary body functions through the use of neurotransmitters and receptors. Different types of receptors interact with specific neurotransmitters to produce various physiological effects.<\/p>\n\n\n\n

1. Nicotinic Receptors:<\/strong><\/h4>\n\n\n\n

Nicotinic receptors are a subtype of acetylcholine (ACh) receptors. They are found in both the somatic nervous system<\/strong> and the autonomic nervous system<\/strong>.<\/p>\n\n\n\n

    \n
  • In the somatic nervous system<\/strong>, nicotinic receptors are located on skeletal muscle cells, and when ACh binds to these receptors, it triggers muscle contraction.<\/li>\n\n\n\n
  • In the autonomic nervous system<\/strong>, nicotinic receptors are present in the ganglia<\/strong> (where pre- and post-ganglionic neurons communicate) and on cells of the adrenal medulla<\/strong>. When ACh binds to nicotinic receptors in these areas, it facilitates the transmission of signals across the synapse between neurons. Thus, nicotinic receptors are directly activated by acetylcholine<\/strong> (ACh), which is why the correct pairing is “nicotinic: acetylcholine.”<\/li>\n<\/ul>\n\n\n\n

    2. Muscarinic Receptors:<\/strong><\/h4>\n\n\n\n

    Muscarinic receptors are another type of ACh receptor, but they are different from nicotinic receptors. These are G protein-coupled receptors<\/strong> found on target organs of the parasympathetic nervous system<\/strong> (e.g., heart, smooth muscle, glands). Muscarinic receptors are activated by acetylcholine<\/strong>, not norepinephrine.<\/p>\n\n\n\n

    3. Adrenergic Receptors:<\/strong><\/h4>\n\n\n\n

    Receptors like alpha 1<\/strong> and beta 1<\/strong> are types of adrenergic receptors. They are activated by norepinephrine<\/strong> (NE) or epinephrine<\/strong> (E). For example:<\/p>\n\n\n\n

      \n
    • Alpha 1 receptors<\/strong> are located on smooth muscle cells and respond to norepinephrine, leading to vasoconstriction.<\/li>\n\n\n\n
    • Beta 1 receptors<\/strong> are found primarily in the heart and increase heart rate when stimulated by norepinephrine or epinephrine.<\/li>\n<\/ul>\n\n\n\n

      4. Incorrect Pairings:<\/strong><\/h4>\n\n\n\n
        \n
      • a) Nicotinic: norepinephrine<\/strong> is incorrect, as nicotinic receptors are activated by acetylcholine, not norepinephrine.<\/li>\n\n\n\n
      • c) Muscarinic: norepinephrine<\/strong> is also incorrect, as muscarinic receptors are specifically activated by acetylcholine.<\/li>\n\n\n\n
      • d) Alpha 1: acetylcholine<\/strong> is incorrect, as alpha 1 receptors<\/strong> are activated by norepinephrine, not acetylcholine.<\/li>\n<\/ul>\n\n\n\n

        Thus, nicotinic: acetylcholine<\/strong> is the correct receptor-neurotransmitter pairing.<\/p>\n","protected":false},"excerpt":{"rendered":"

        Which receptor paring below is correct? a) nicotinic: norepinephrine b) nicotinic; acetylchline c) muscarinic: norepinephrine d) alpha 1: acetylcholine The Correct Answer and Explanation is: The correct answer is b) nicotinic; acetylcholine. Explanation: The autonomic nervous system (ANS) regulates involuntary body functions through the use of neurotransmitters and receptors. Different types of receptors interact with […]<\/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-166652","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/166652","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=166652"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/166652\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=166652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=166652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=166652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}