Vestibular duct

Vestibular duct
Inner ear, with vestibular duct labeled near bottom.
Cross section of the cochlea.
Details
Identifiers
Latin	Scala vestibuli
TA	A15.3.03.043
FMA	61269
Anatomical terminology []

The vestibular duct or scala vestibuli is a perilymph-filled cavity inside the cochlea of the inner ear that conducts sound vibrations to the cochlear duct.

It is separated from the cochlear duct by Reissner's membrane and extends from the vestibule of the ear to the helicotrema where it joins the tympanic duct.

The cochlea and vestibule, viewed from above.

Transverse section of the cochlear duct of a fetal cat.

Interior of right osseous labyrinth.

Diagrammatic longitudinal section of the cochlea.