Tags: Anatomical Structure, Bone.
Medial to the opening for the carotid canal and close to its posterior border in front of the jugular fossa is a triangular depression; at the apex of this is a small opening the aquaeductus cochleae (or cochlear aqueduct or aqueduct of cochlea) which lodges a tubular prolongation of the dura mater establishing a communication between the perilymphatic space and the subarachnoid space and transmits a vein from the cochlea to join the internal jugular
