An auditory impulse is initiated when the hairs on the hair cells are deformed by contact with the
A) basilar membrane
B) vestibular membrane
C) tectorial membrane
D) endolymph
E) perilymph

Question

Quizplus · Accepted Answer

The tectorial membrane is a gelatinous structure that overhangs the hair cells in the cochlea of the inner ear. When sound waves cause vibrations in the fluid of the cochlea, the hair cells are deformed and the tectorial membrane plays a crucial role in this process. This deformation triggers the auditory impulse that is ultimately relayed as a nerve signal to the brain.

An Auditory Impulse Is Initiated When the Hairs on the Hair