Cranial Nerves VII-IX

Front

Cranial Nerve VII

Back

Also known as the Facial Nerve, it is responsible for controlling the muscles of facial expression and conveying taste sensations from the anterior two-thirds of the tongue.

Front

Cranial Nerve VIII

Back

Known as the Vestibulocochlear Nerve, it is responsible for hearing and balance.

Front

Cranial Nerve IX

Back

Also called the Glossopharyngeal Nerve, it is involved in taste from the posterior one-third of the tongue and the gag reflex.

Front

Function of the Vestibulocochlear Nerve (VIII)

Back

It transmits sound and equilibrium (balance) information from the inner ear to the brain.

Front

Purely Sensory Cranial Nerves

Back

The Olfactory (I), Optic (II), and Vestibulocochlear (VIII) nerves are purely sensory.

Front

Gag Reflex

Back

A reflex contraction of the muscles at the back of the throat, triggered by the Glossopharyngeal Nerve (IX) and Vagus Nerve (X).

Front

Cranial Nerve Functions

Back

Cranial nerves can be sensory, motor, or both; they control various functions including taste, hearing, and facial movements.

Front

Cranial Nerve I

Back

The Olfactory Nerve, responsible for the sense of smell.

Front

Cranial Nerve II

Back

The Optic Nerve, responsible for vision.

Front

Cranial Nerve V

Back

The Trigeminal Nerve, responsible for sensation in the face and motor functions such as biting and chewing.