Chapter 15 part C

Twelve pairs of cranial nerves are numbered with roman numerals by their position from…

anterior to posterior

I

Olfactory

Sensory

Smell

II

Optic

Sensory

Vision

III

Oculomotor

Motor

Innervates four muscles that move the eye

IV

trochlear

Motor

Innervates one muscle that moves the eye

V

Trigeminal

Both

Sensory - General sensation from tongue to brain

Motor - to muscles of mastication (chewing)

VI

Abducens

Motor

one muscle that moves the eye

VII

Facial

Both

Sensory - Taste from the anterior tongue

Motor - Muscles of facial expression

VIII

Vastibulochoclear

Sensory

Balance and hearing

IX

glossopharyngeal

Both

Sensory - from the posterior tongue

Motor - to the pharynx

X

Vagus

Both

Sensory/motor: to and from the viscera and pharynx

XI

Accessory

Motor

Sternocleidomastoid and trapezius

XII

Hypoglossal

Motor

To the tongue