External opening of carotid canal - Apertura externa canalis carotici



The external opening of carotid canal is 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.

Text by Antoine Micheau, MD - Copyright IMAIOS

Anatomical hierarchy

General Anatomy > Bones; Skeletal system > Axial skeleton > Cranium > Temporal bone > Petrous part > Apex of petrous part > Carotid canal > External opening of carotid canal