Subarcuate fossa
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211047079
2008-05-08T15:37:57Z
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{{Infobox Bone |
Name = Subarcuate fossa |
Latin = f. subarcuata ossis temporalis |
GraySubject = 34 |
GrayPage = 143 |
Image = Gray138.png |
Caption = Left [[temporal bone]]. Inner surface. (Subarcuate fossa not labeled, but aquƦductus vestibuli labeled at lower right.) |
Image2 = Gray193.png |
Caption2 = Base of the [[skull]]. Upper surface. (Subarcuate fossa not labeled, but [[temporal bone]] is identified in pink, and "Eminentia arcuata" is labeled.) |
System = |
MeshName = |
MeshNumber = |
DorlandsPre = f_14 |
DorlandsSuf = 12376677 |
}}
In the [[temporal bone]], above and between the [[aquƦductus vestibuli]] is an irregular depression which lodges a process of the [[dura mater]] and transmits a small [[vein]] and the subarcuate artery [http://www.rforl.com/PDF/UK0508801.pdf]a branch of the internal auditory artery, which is an end artery that supplies blood to the inner ear ; in the infant this depression is represented by a large [[fossa]], the '''subarcuate fossa''', which extends backward as a blind tunnel under the [[superior semicircular canal]].
It is extensive in most primates (except for great apes) and nearly all mammals. In these animals, the subarcuate fossa houses a part of the brains cerebellum, the petrosal lobe. see [http://www.ncbi.nlm.nih.gov/pubmed/3207165?ordinalpos=10&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum]
[http://www.ncbi.nlm.nih.gov/pubmed/18395770?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum]
==External links==
* {{RocheLexicon|34257.000-2}}
{{Gray's}}
{{Skull}}
{{musculoskeletal-stub}}