{"id":8923,"date":"2020-05-25T14:20:58","date_gmt":"2020-05-25T14:20:58","guid":{"rendered":"https:\/\/corpsite.staging.3d4medical.cloud\/uncategorized\/blood-supply-to-the-brain"},"modified":"2023-02-16T10:36:50","modified_gmt":"2023-02-16T10:36:50","slug":"blood-supply-to-the-brain","status":"publish","type":"post","link":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/blog\/blood-supply-to-the-brain","title":{"rendered":"Blood supply to the brain"},"content":{"rendered":"\n<p>If we were to take all the blood vessels in the brain and stretch them&nbsp;out,&nbsp;they would be&nbsp;100,000 miles&nbsp;long!&nbsp;The main arteries that supply&nbsp;the brain with blood&nbsp;are the paired&nbsp;<strong>vertebral<\/strong>&nbsp;and&nbsp;<strong>internal carotid<\/strong>&nbsp;arteries.&nbsp;They&nbsp;begin&nbsp;in&nbsp;the neck and travel up&nbsp;to the cranium. Once in the cranial vault, the terminal branches form an anastomotic circle,&nbsp;commonly known as the&nbsp;<strong>Circle of Willis<\/strong>.&nbsp;Branches arise from the circle to supply&nbsp;most of&nbsp;the cerebrum.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<figure>\n<img decoding=\"async\" src=\"https:\/\/cdn.completeanatomy.cn\/website\/blog\/circle-of-willis.jpg\" alt=\"The circle of willis with structures labelled\">\n<figcaption>\nThe Circle of Willis\n<\/figcaption>\n<\/figure>\n\n\n\n<p>The&nbsp;<strong>internal carotid<\/strong>&nbsp;<strong>arteries&nbsp;<\/strong>come from the&nbsp;bifurcation&nbsp;of left and right common carotid arteries at the level of&nbsp;C4 vertebrae. They move upwards within the carotid sheath and enter the brain through the carotid canal of the temporal bone.&nbsp;They then&nbsp;pass anteriorly via the cavernous sinus.&nbsp;Distally,&nbsp;each gives rise&nbsp;to the&nbsp;ophthalmic,<strong>&nbsp;posterior&nbsp;communicating,&nbsp;<\/strong>anterior&nbsp;choroidal, and&nbsp;<strong>anterior&nbsp;cerebral&nbsp;arteries<\/strong>.&nbsp;In continuation, the&nbsp;<strong>middle cerebral artery<\/strong>&nbsp;forms to supply blood to the lateral portions of the brain.&nbsp;&nbsp;<\/p>\n\n\n\n<figure>\n<img decoding=\"async\" src=\"https:\/\/cdn.completeanatomy.cn\/website\/blog\/blood-supply-to-brain-2.jpg\" alt=\"Blood supply to the brain with internal carotid artery and vertebral artery highlighted\">\n<\/figure>\n\n\n\n<p>The&nbsp;<strong>right and left vertebral arteries<\/strong>&nbsp;branch off from the subclavian arteries&nbsp;and are medial to the anterior scalene muscle. They&nbsp;move upwards to the posterior portion of the neck and pass through&nbsp;the&nbsp;foramen&nbsp;transversarium&nbsp;within the cervical vertebrae. Via the foramen magnum the arteries reach the cranial cavity&nbsp;and give rise to the following branches:<strong>&nbsp;<\/strong>meningeal branch, anterior and posterior spinal arteries, and the posterior inferior cerebellar&nbsp;artery.&nbsp;Afterwards the two vertebral arteries conjoin to form the&nbsp;<strong>basilar artery<\/strong>,&nbsp;whose branches supply the cerebellum and pons. The basilar artery ends by&nbsp;bifurcating&nbsp;into&nbsp;<strong>posterior cerebral arteries<\/strong>.&nbsp;&nbsp;<\/p>\n\n\n\n<figure>\n<img decoding=\"async\" src=\"https:\/\/cdn.completeanatomy.cn\/website\/blog\/blood-supply-to-brain-3.jpg\" alt=\"Blood supply to the brain with anterior cerebral artery, basilar artery, middle cerebral artery, left vertebral artery and right internal carotid artery highlighted\">\n<\/figure>\n\n\n\n<p>Every time the heart beats, arteries carry 20 to 25% of the blood to the brain.&nbsp;The&nbsp;blood flow&nbsp;to the brain is vital to&nbsp;its&nbsp;function&nbsp;since it is particularly sensitive to oxygen starvation. When an area&nbsp;of the brain&nbsp;is&nbsp;cut off from&nbsp;blood flow, a stroke can&nbsp;result.<\/p>\n\n\n\n<p><strong>Gain a complete understanding of vascular supply with the world&#8217;s most advanced 3D anatomy platform. By incrementally turning on layers of the arterial and venous systems, you can learn in 3D the blood supply to major organs, muscle compartments and other tissues. <\/strong><a href=\"https:\/\/completeanatomy.cn\"><strong>Try it for FREE<\/strong><\/a><strong> today.<\/strong><\/p>\n\n\n\n<p>If you found this blog post useful, you might also enjoy learning about <a href=\"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/blog\/studying-the-skull-in-complete-anatomy-2022\">how to study the Skull in Complete Anatomy.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If we were to take all the blood vessels in the brain and stretch them out, they would be 100,000 miles long!<a class=\"more-link\" href=\"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/blog\/blood-supply-to-the-brain\">Leer art\u00edculo<\/a><\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[236],"tags":[],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/posts\/8923"}],"collection":[{"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/comments?post=8923"}],"version-history":[{"count":5,"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/posts\/8923\/revisions"}],"predecessor-version":[{"id":18716,"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/posts\/8923\/revisions\/18716"}],"wp:attachment":[{"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/media?parent=8923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/categories?post=8923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/corpsite.nonprod.completeanatomy.cn\/es\/wp-json\/wp\/v2\/tags?post=8923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}