Vestibular aqueduct

Last revised by Dr Tee Yu Jin on 07 Mar 2019

The vestibular aqueduct is a structure of the inner ear being part of the osseous labyrinth. It contains the endolymphatic duct and sac. It normally has a diameter of approximately 1.5 mm (similar to the posterior semicircular canal) and runs from the vestibule in a transverse direction to the long axis of the petrous temporal bone to the posterior cranial fossa

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