Cranial Nerve # and function

Question 1

Olfactory (#, function, S/M/B)

Answer 1

CN 1, smell, Sensory

Question 2

Optic (#, function, S/M/B)

Answer 2

CN 2, vision, Sensory

Question 3

Oculomotor (#, function, S/M/B)

Answer 3

CN 3, eye movement (accommodation, pupil dilation/constriction, fixation), Motor

Question 4

Trochlear (#, function, S/M/B)

Answer 4

CN 4, in & down eye movement (cross-eyed), Motor

Question 5

Trigeminal (#, function, S/M/B)

Answer 5

CN 5, facial sensation, jaw movement, taste. Both sensory & motor

Question 6

Abducens (#, function, S/M/B)

Answer 6

CN 6, horizontal eye movement, Motor

Question 7

Facial (#, function, S/M/B)

Answer 7

CN 7, facial expression, sense of taste, Both sensory and motor

Question 8

Vestibulocochlear (Auditory) (#, function, S/M/B)

Answer 8

CN 8, hearing/balance (“eye/equilibrium”), Sensory

Question 9

Glossopharyngeal (#, function, S/M/B)

Answer 9

CN 9, taste & swallowing, Both sensory & motor

Question 10

Vagus (#, function, S/M/B)

Answer 10

CN 10, heart rate & digestion, Both sensory & motor

Question 11

Accessory (#, function, S/M/B)

Answer 11

CN 11, neck & shoulder movement, Motor

Question 12

Hypoglossal (#, function, S/M/B)

Answer 12

CN 12, tongue movement, Motor