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1. Glossary

Vestibular duct

The vestibular duct or scala vestibuli is the uppermost of the three canals of the cochlea and is filled with perilymph. At the oval window, the movements of the stapes transmit vibrations to the perilymph of the scala vestibuli. These vibrations set the basilar membrane in motion and thus indirectly influence the middle canal, the scala media.