chapter 16. cranial nerve function & fibers

Question 1

I. olfactory

Answer 1

smell

sensory

Question 2

II. optic

Answer 2

vision

sensory

Question 3

III. oculomotor

Answer 3

eye movement, pupillary constriction, rounding of the lens

M + P

Question 4

IV. trochlear

Answer 4

eye movement

M

Question 5

V. trigeminal

Answer 5

motor to the muscles of mastication, general sensation to the face, mouth and teeth, and anterior 2/3 of the tongue
(M + S)

Question 6

VI. abducens

Answer 6

eye movement

M

Question 7

VII. facial

Answer 7

motor to muscles of facial expression, taste to anterior 2/3 of tongue and soft palate, motor to the sub mandibular and sublingual salivary glands
(M, S, P)

Question 8

VIII. vestibulocochlear

Answer 8

hearing, equilibrium, and balance

S

Question 9

IX. glossopharyngeal

Answer 9

motor to muscle of the pharynx, general sensation to the pharyngeal wall, general sensation and taste to posterior 1/3 of the tongue, motor to the parotid gland

(M, S, P)

Question 10

X. vagus

Answer 10

motor to the muscles of the larynx, pharynx, and palate; visceral sensation; motor to the organs of the thorax and abdomen
(M, S, P)

Question 11

XI. accessory

Answer 11

motor to the trapezius and sternocleiodomastiod muscles

M

Question 12

XII. hypoglossal

Answer 12

motor to muscles of the tongue

M