Cochlea sound processing

Which part of the cochlea is responsible for detecting different frequencies of sound?

• The semicircular canals

• The basilar membrane

• The tympanic membrane

• The auditory nerve

How does the cochlea convert sound waves into electrical signals?

• By vibrating the tympanic membrane

• By moving the stapes in the middle ear

• By bending hair cells in the organ of Corti, leading to neurotransmitter release

• By amplifying sound waves in the semicircular canals

The cochlea contains the (a)   , which houses hair cells responsible for converting mechanical vibrations into neural signals.

High-frequency sounds are detected at the (a)   ​end of the basilar membrane, while low-frequency sounds are detected at the ​apex end.

The hair cells in the cochlea depolarize when their stereocilia bend toward the kinocilium, leading to neurotransmitter release.

• True

• False