Chapter 12 - Cranial Nerves

olfactory (I)

transports impulses for sense of smell

optic (II)

carries impulses for sense of sight

oculomotor (III)

motor impulses for eye muscle movement and the pupil of the eye

trochlear (IV)

controls superior oblique muscle of eye on each side

trigeminal (V)

carries sensory facial impulses and controls muscles for chewing; branches into eyes, forehead, upper and lower jaw

abducens (VI)

controls an eyeball muscle to turn eye to side

facial (VII)

controls facial muscles for expression, salivation, and taste on two-thirds of tongue (anterior)

vestibulocochlear (VIII)

responsible for impulses of equilibrium and hearing; also called auditory nerve

glossopharyngeal (IX)

carries sensory impulses from pharynx (swallowing) and taste on one-third of tongue

vagus (X)

supplies most organs in abdominal and thoracic cavities

accessory (XI)

controls the neck and shoulder muscles

hypoglossal (XII)

controls tongue muscles