File:Cerebral blood supply development 01.jpg

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Cerebral Blood Supply Development

  • 4-5-mm embryonic stage - the hindbrain (i.e., future posterior fossa) is supplied by two parallel neural arteries (or channels). These arteries obtain their blood supply from carotid-vertebrobasilar anastomoses given by the trigeminal artery (TA), the otic artery (OA), the hypoglossal artery (HA), and the proatlantal artery (ProA)
  • 5-8 mm stage The basilar artery (BA) forms from the consolidation of the neural arteries.
  • A - In early phases of development the posterior circulation relies almost entirely from blood supply coming from the anterior circulation through carotid-vertebrobasilar anastomoses.
  • B and C - As the posterior fossa structures and the occipital lobe grow, the posterior circulation becomes progressively independent from the anterior circulation with obliteration of the anterior-posterior anastomoses from caudal to rostral maintaining in the majority of adult only one connection between the distal basilar arteries with the carotid artery via the posterior communicating artery.


Links: Head Development

Reference

<pubmed>26060802</pubmed>| J Stroke.

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Figure 2. http://synapse.koreamed.org/ViewImage.php?Type=F&aid=497461&id=F2&afn=1183_JOS_17_2_144&fn=jos-17-144-g002_1183JOS

Jos-17-144-g002-l.jpg

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current13:24, 15 Haziran 2015Thumbnail for version as of 13:24, 15 Haziran 20151,200 × 460 (67 KB)Z8600021 (talk | contribs)==Cerebral Blood Supply Development== At the 4-5-mm embryonic stage, the hindbrain (i.e., future posterior fossa) is supplied by two parallel neural arteries (or channels). These arteries obtain their blood supply from carotid-vertebrobasilar anastomo...

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