The vestibular aqueduct is a bony canal running from the vestibule of the inner ear to the back surface of the petrous temporal bone. It carries the endolymphatic duct to the endolymphatic sac.
| Location | Petrous temporal bone, from the vestibule to the posterior cranial fossa surface |
|---|---|
| Parts |
|
| Nerve Supply | None of importance |
| Blood Supply | Branches of the posterior meningeal and labyrinthine arteries |
Houses the endolymphatic duct, which helps regulate endolymph volume.
Enlarged vestibular aqueduct is the most common inner ear malformation found in children with hearing loss; hearing may drop suddenly after minor head bumps, so contact sports may need care.
A widened canal associated with fluctuating, progressive hearing loss in children.
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