Cranial Nerves

Question 1

CN I

Answer 1

Olfactory (Sensory)

Question 2

CN II

Answer 2

Optic (Sensory)

Question 3

CN III

Answer 3

Oculomotor (Motor)

Function: extra-ocular movements, pupil, lens

Question 4

CN IV

Answer 4

Trochlear (Motor)

Function: extra-ocular movements, down and laterally

Question 5

CN V

Answer 5

Trigeminal (Motor and Sensory)
Function-
–Ophthalmic: sensation of cornea, facial skin, nasal mucosa
–Maxillary: facial skin sensation, anterior oral cavity
–Mandibular: chewing, sensation of skin

Question 6

CN VI

Answer 6

Abducens (Motor)

Function: extra-ocular movements, moves eyeball laterally

Question 7

CN VII

Answer 7

Facial (Motor and Sensory)

Function: facial expressions & taste at front of tongue

Question 8

CN VIII

Answer 8

Vastibulocochlear (Sensory)

Function: equilibrium & hearing

Question 9

CN IX

Answer 9

Glossopharyngeal (Motor and Sensory)

Function: swallowing, taste at back of tongue, tongue movement

Question 10

CN X

Answer 10

Vagus (Motor and Sensory)

Function: sensation of pharynx and larynx, swallowing, vocal chord movement

Question 11

CN XI

Answer 11

Accessory (Motor)

Function: head movement, shoulder shrugging

Question 12

CN XII

Answer 12

Hypoglossal (Motor)

Function: protrusion and lateral movement of tongue