Cranial Nerves

Question 0

II

Optic

Answer 0

Sensory

Visual acuity and visual fields

Question 1

I

Olfactory

Answer 1

Sensory:

Smell reception and interpretation

Question 2

III

Oculomotor

Answer 2

Motor:

Extraocular eye movements, elevation of lids, pupillary constriction, control of lens shape.

Question 3

IV

Trochlear

Answer 3

Motor:

Downward and inward eye movement

Question 4

V

Trigeminal

Answer 4

Sensory:

Sensation of face, scalp, cornea, oral, and nasal mucous membranes

Motor:
Chewing movements of the jaw

Question 5

VI

Abducens

Answer 5

Motor:

Lateral eye movement

Question 6

VII

Facial

Answer 6

Sensory:
Taste on the anterior 2/3 of the tongue

Motor:
Facial movements, eye closure, labial speech

Question 7

VIII

Acoustic

Answer 7

Sensory:

Hearing and balance

Question 8

IX

Glossopharyngeal

Answer 8

Sensory:

Taste on the posterior 1/3 of the tongue, pharyngeal gag reflex, sensation from the eardrum and ear canal.

Question 9

X

Vagus

Answer 9

Sensory:

Sensation from pharynx, viscera, carotid body, and carotid sinus.

Question 10

XI

Spinal Accessory

Answer 10

Motor:

Trapezius and sternocleidomastoid muscle movement

Question 11

XII

Hypoglossal

Answer 11

Motor:

Tongue movement for speech, sound articulation, and swallowing