Cranial Nerve
Ear Structure
Sound Perception
100

This nerve dampens ossicle movement during loud sounds

Facial nerve (CN VII)

100

These are the names of the three sections of the ear.

What is the external ear, middle ear and inner ear?

100

Sound perception begins at this section of the outer ear.

What is the pinna/auricle?

200

This nerve exits the internal ear via the internal auditory canal

 What is the vestibulocochlear nerve (CN VIII)?

200

This structure separates the external ear from the middle ear

What is the tympanic membrane?

200

This fluid is located inside the cochlear duct.

Endolymph

300

This nerve transmits auditory sensory information from the cochlea of the inner ear to the cochlear nuclei in the medula of the brainstem

What is the vestibulocochlear nerve (CN VIII )?

300

The trigeminal nerve innervates this muscle.

What is the tensor tympani muscle?

300

Movement of this membrane in response to sound waves causes the depolarization of hair cells in the organ of Corti

Tectorial membrane