vestibular aqueduct(redirected from aqueductus cotunnii)
a bony canal running from the vestibule and opening on the posterior surface of the petrous portion of the temporal bone, giving passage to the endolymphatic duct and a small vein.
A small passage reaching from the vestibule to the posterior surface of the petrous section of the temporal bone.Synonym: aqueductus vestibuli
See also: aqueduct
ves·tib·u·lar a·que·duct(ves-tibyū-lăr ahkwĕ-dŭkt) [TA]
Bony canal running from vestibule and opening on posterior surface of petrous portion of temporal bone, giving passage to endolymphatic duct and a small vein.
canal or passage.
a narrow channel in the midbrain connecting the third and fourth ventricles and containing cerebrospinal fluid. Called also aqueduct of Sylvius.
aqueduct of cochlea
a narrow canal that unites the perilymphatic space near the base of the cochlea with the subarachnoid space beneath the temporal bone. Called also perilymphatic duct.
aqueduct of Cotunnius
aqueduct of Fallopius
the canal for the facial nerve in the temporal bone. Called also facial canal.
sylvian aqueduct, aqueduct of Sylvius
cerebral aqueduct. Called also ventricular aqueduct.
see cerebral aqueduct (above).
bony canal that opens onto the medial surface of the temporal bone and passes to the vestibule of the inner ear; houses the endolymphatic duct. Called also aqueduct of Cotunnius.