Cerebral Blood Supply Development
|
Embryonic stage
- 4-5-mm - 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 - the basilar artery (BA) forms from the consolidation of the neural arteries.
- 7-12 mm - the vertebral arteries (VA) forms from transverse anastomoses between cervical intersegmental arteries, beginning with the ProA and proceeding downward to the 6th intersegmental artery,
|
- 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.
Copyright
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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
File history
Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan
| Gwalagizhi | Nyangagi | Dimensions | User | Comment |
|---|
| current | 13:24, 15 Haziran 2015 |  | 1,200 × 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... |
You cannot overwrite this file.
File usage
The following page uses this file:
This file contains additional information, probably added from the digital camera or scanner used to create or digitise it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
