Cranial Nerves

Question 1

What is CN I?

Answer 1

olfactory - test sense of smell

Question 2

What is CN II?

Answer 2

optic - test vision (NOT movement): Snellen chart, pupillary reflex, and visual fields

Question 3

What is CN III?

Answer 3

oculomotor - test extraocular eye movements (up and to the left/right, in, and in and down)

Question 4

What is CN IV?

Answer 4

trochlear - test extraocular eye movements (down and out)

Question 5

What is CN V?

Answer 5

trigeminal - test facial sensation

Question 6

What is CN VI?

Answer 6

abducens - test extraocular eye movements (lateral)

Question 7

What is CN VII?

Answer 7

facial - test facial movement (smile, frown, puff cheeks)

Question 8

What is CN VIII?

Answer 8

vestibulocochlear - test hearing (whisper test) and balance

Question 9

What is CN IX?

Answer 9

glossopharyngeal - test swallowing and taste

Question 10

What is CN X?

Answer 10

vagus - check gag reflex and that uvula is midline

Question 11

What is CN XI?

Answer 11

accessory - test ability to shrug shoulders

Question 12

What is CN XII?

Answer 12

hypoglossal - test ability to move tongue