Subarcuate fossa

Infobox Bone
Name = Subarcuate fossa
Latin = f. subarcuata ossis temporalis
GraySubject = 34
GrayPage = 143

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Caption = Left temporal bone. Inner surface. (Subarcuate fossa not labeled, but aquæductus vestibuli labeled at lower right.)

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Caption2 = Base of the skull. Upper surface. (Subarcuate fossa not labeled, but temporal bone is identified in pink, and "Eminentia arcuata" is labeled.)
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DorlandsPre = f_14
DorlandsSuf = 12376677
In the temporal bone, above and between the aquæductus 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 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]

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