Which is a function of the cranial nerves?

Optic-Sensation of vision.

Oculomotor-Controls four of the six eye muscles and the eyelid muscle.

Parasympathetic control of the lens and pupil.

Trochlear-Controls the superior oblique muscle of the eye.

Explanation:

welve cranial nerves

Number

Name

Functional components

Function

1

Olfactory

Special sensory

Sensation of smell.

2

Optic

Special sensory

Sensation of vision.

3

Oculomotor

Somatic motor

Controls four of the six eye muscles and the eyelid muscle.

Visceral motor

Parasympathetic control of the lens and pupil.

4

Trochlear

Somatic motor

Controls the superior oblique muscle of the eye.

5

Trigeminal

Somatic sensory

Sensation from the skin of the face.

Branchial motor

Controls the muscles of the jaw.

6

Abducens

Somatic motor

Controls the lateral rectus muscle of the eye.

7

Facial

Somatic sensory

Taste sensation from the front of the tongue.

Branchial motor

Controls the muscles of the face.

8

Vestibulocochlear

Special sensory

Sensations of hearing and balance.

9

Glossopharyngeal

Branchial motor

Controls one of the muscles of the pharynx.

Visceral motor

Parasympathetic control of the parotid salivary gland.

Special sensory

Taste sensation from the back part of the tongue.

Visceral sensory

Detection of blood pressure changes.

10

Vagus

Visceral motor

Parasympathetic control of internal organs of the thorax and abdomen.

Visceral sensory

Sensation from the internal organs.

Branchial motor

Controls the muscles of the pharynx and larynx.

11

Accessory (spinal part)

Somatic motor

Controls two large neck muscles.

12

Hypoglossal

Somatic motor

Controls the muscles of the tongue.