Cranial Nerve Functions

Question 1

olfactory (CrN I)

Answer 1

sensory - smell

Question 2

optic (CrN II)

Answer 2

sensory - vision

Question 3

oculomotor (CrN III)

Answer 3

motor - motor to muscles that move the eye

Question 4

trochlear (CrN IV)

Answer 4

motor - motor to one muscle that moves the eye

Question 5

trigeminal (CrN V)

Answer 5

mixed - main sensory nerve to the head; motor to muscles of mastication

Question 6

abducens (CrN VI)

Answer 6

motor - motor to muscles that move the eye

Question 7

facial (CrN VII)

Answer 7

mixed - motor to muscles of facial expression; taste, stimulates salivary glands

Question 8

vestibulocochlear (CrN VIII)

Answer 8

sensory - equilibrium and hearing

Question 9

glossopharyngeal (CrN IX)

Answer 9

mixed - motor to muscles of the pharynx; taste; stimulates salivary glands

Question 10

vagus (CrN X)

Answer 10

mixed - motor to muscles of pharynx and larynx; taste, stimulates visceral muscle; slows heart rate

Question 11

accessory (CrN XI)

Answer 11

motor - motor to some neck muscles

Question 12

hypoglossal (CrN XII)

Answer 12

motor - motor to all muscles of the tongue