Chapter 8 cranial nerves

Question 1

I olfactory

Answer 1

sense of smell

Question 2

II optic

Answer 2

sense of sight

Question 3

III oculomotor

Answer 3

movement of the eyeball; constriction of pupil in bright light or for near vision

Question 4

IV Trochlear

Answer 4

movement of eyeball

Question 5

V Trigeminal

Answer 5

sensation in face, scalp, and teeth; contraction of chewing muscles

Question 6

VI Abducens

Answer 6

movement of the eyeball

Question 7

VII facial

Answer 7

sense of taste; contraction of facial muscles, secretion of saliva

Question 8

VIII acoustic (vestibulocochlear)

Answer 8

sense of hearing; sense of equilibrium

Question 9

IX Glossopharyngeal

Answer 9

Sense of taste; sensory for cardiac, respiratory, and blood pressure reflexes; contraction of pharynx; secretion of saliva

Question 10

X vagus

Answer 10

Sensory in cardiac, respiratory, and blood pressure reflexes; sensory and motor to larynx (speaking); decreases heart rate; contraction of alimentary tube (peristalsis); increase digestive secretions

Question 11

XI accessory

Answer 11

Contraction of neck and shoulder muscles; motor to larynx (speaking)

Question 12

XII hypoglossal

Answer 12

movement of the tongue