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.

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.