Cranial Nerves

Question 1

I

Answer 1

Olfactory

Sense of smell

Question 2

II

Answer 2

Optic

Vision

Question 3

III

Answer 3

Oculomotor

Pupillary constriction, opening of the eye, extraocular movements

Question 4

IV

Answer 4

Trochlear

Downward, internal rotation of the eye

Question 5

V

Answer 5

Trigeminal

Motor: temporal & masseter muscles (jaw clenching), lateral pterygoids (lateral jaw movement)
Sensory: facial (ophthalmic, maxillary, mandibular)

Question 6

VI

Answer 6

Abducens

Lateral deviation of the eye

Question 7

VII

Answer 7

Facial

Motor: facial movements (expressions/closing the eye/closing the mouth)
Sensory: taste for salty, sweet, sour, & bitter on the anterior 2/3 of the tongue; sensation from the ear

Question 8

VIII

Answer 8

Vestibulocochlear

Hearing (cochlear division)
Balance (vestibular division)

Question 9

IX

Answer 9

Glossopharyngeal

Motor: pharynx sensory - posterior portions of the eardrum/ear canal, pharynx, & posterior tongue (including taste: salty, sweet, sour, bitter)

Question 10

X

Answer 10

Vagus

Motor: palate, pharynx, larynx
Sensory: pharynx & larynx

Question 11

XI

Answer 11

Spinal Accessory

Motor: sternocleidomastoid & trapezius

Question 12

XII

Answer 12

Hypoglossal

Motor: tongue