dictionary help| petrosal fossula | medical dictionary |
A small and often only faintly marked depression on the inferior surface of the petrous portion of the temporal bone, between the jugular fossa and the opening of the carotid canal; here opens the canaliculus tympanicus transmitting the tympanic nerve.
Synonyms: fossula petrosa, petrosal fossa, receptaculum ganglii petrosi.
(05 Mar 2000)
petrosal branch of middle meningeal artery, petrosal foramen, petrosal fossa < Prev | Next > petrosal impression of the pallium, petrosalpingostaphylinus
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