external opening of carotid canal

external opening of carotid canal

a roughly circular opening on the inferior surface of the petrous portion of the temporal bone by which the internal carotid artery enters the carotid canal. Synonym(s): apertura externa canalis carotici [TA]

ex·ter·nal open·ing of ca·rot·id ca·nal

(eks-tĕrnăl ōpĕn-ing kă-rotid kă-nal) Roughly circular opening on the inferior surface of the petrous portion of the temporal bone by which the internal carotid artery enters the carotid canal.