{"id":30424,"date":"2020-03-21T04:40:00","date_gmt":"2020-03-21T04:40:00","guid":{"rendered":"https:\/\/johnsonfrancis.org\/professional\/?p=30424"},"modified":"2020-03-21T04:40:00","modified_gmt":"2020-03-21T04:40:00","slug":"blood-vessel-radius-and-resistance-mcq-answer","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/blood-vessel-radius-and-resistance-mcq-answer\/","title":{"rendered":"Blood vessel radius and resistance &#8211; MCQ &#8211; Answer"},"content":{"rendered":"<h2><span style=\"color: #008000;\">Blood vessel radius and resistance &#8211; MCQ &#8211; Answer<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-26748 size-large\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2018\/09\/Medicine-MCQ-CVS2-1024x543.png\" alt=\"\" width=\"640\" height=\"339\" \/><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Relation between the resistance of a blood vessel and its radius is governed according to Poiseuille&#8217;s Law. If vessel radius decreases, resistance increases by its \u2013 power \u2013 Correct Answer: c) 4<sup>th<\/sup> power<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">In systemic vascular tree, most of the resistance is contributed by vessels of diameter in the range of 50 \u2013 200 microns. The tone of these resistance vessels is well regulated by humoral and neural influences. Neurally mediated vasoconstriction is through alpha adrenergic receptors on vascular smooth muscle. Vasodilatation is by muscarinic and beta 2 adrenoceptors.<\/span><\/p>\n<p><a href=\"https:\/\/johnsonfrancis.org\/professional\/blood-vessel-radius-and-resistance-mcq\/\"><strong>Back to question<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Blood vessel radius and resistance &#8211; MCQ &#8211; Answer Relation between the resistance of a blood vessel and its radius is governed according to Poiseuille&#8217;s Law. If vessel radius decreases, resistance increases by its \u2013 power \u2013 Correct Answer: c) 4th power In systemic vascular tree, most of the resistance is contributed by vessels of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":26748,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-30424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cardiology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Blood vessel radius and resistance - MCQ - Answer - All About Cardiovascular System and Disorders<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/professional\/blood-vessel-radius-and-resistance-mcq-answer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Blood vessel radius and resistance - MCQ - Answer - All About Cardiovascular System and Disorders\" \/>\n<meta property=\"og:description\" content=\"Blood vessel radius and resistance &#8211; MCQ &#8211; Answer Relation between the resistance of a blood vessel and its radius is governed according to Poiseuille&#8217;s Law. If vessel radius decreases, resistance increases by its \u2013 power \u2013 Correct Answer: c) 4th power In systemic vascular tree, most of the resistance is contributed by vessels of [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/professional\/blood-vessel-radius-and-resistance-mcq-answer\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Cardiovascular System and Disorders\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-21T04:40:00+00:00\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/blood-vessel-radius-and-resistance-mcq-answer\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/blood-vessel-radius-and-resistance-mcq-answer\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"headline\":\"Blood vessel radius and resistance &#8211; 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