At the hinder part of the medial wall of the vestibule is the orifice of the vestibular aqueduct, which extends to the posterior surface of the petrous portion of the temporal bone. It transmits a small vein, and contains a tubular prolongation of the membranous labyrinth, the ductus endolymphaticus, which ends in a cul-de-sac between the layers of the dura mater within the cranial cavity.
U.S. National Library of Medicine
A small bony canal linking the vestibule of the inner ear to the posterior part of the internal surface of the petrous TEMPORAL BONE. It transmits the endolymphatic duct and two small blood vessels.
The numerical value of vestibular aqueduct in Chaldean Numerology is: 9
The numerical value of vestibular aqueduct in Pythagorean Numerology is: 5
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"vestibular aqueduct." Definitions.net. STANDS4 LLC, 2017. Web. 29 Apr. 2017. <http://www.definitions.net/definition/vestibular aqueduct>.