Cranial Nerves

Question 1

Cranial Nerve I

Answer 1

Olfactory

Question 2

Cranial Nerve II

Answer 2

Optic

Question 3

Cranial Nerve III

Answer 3

Oculomotor

Question 4

Cranial Nerve IV

Answer 4

Trochlear

Question 5

Cranial Nerve V

Answer 5

Trigeminal

Question 6

Cranial Nerve VI

Answer 6

Abducens

Question 7

Cranial Nerve VII

Answer 7

Facial

Question 8

Cranial Nerve VIII

Answer 8

Vestibulocochlear

Question 9

Cranial Nerve IX

Answer 9

Glossopharyngeal

Question 10

Cranial Nerve X

Answer 10

Vagus

Question 11

Cranial Nerve XI

Answer 11

Accessory

Question 12

Cranial Nerve XII

Answer 12

Hypoglossal

Question 13

How many Cranial Nerves are there?

Answer 13

12 Cranial Nerves

Question 14

CN I - Olfacory

Answer 14

Type: sensory
Fxn: smell
Test: identify odor w/ eyes closed

Question 15

CN II - Optic

Answer 15

Type: sensory
Fxn: vision
Test: test peripheral vision w/ one eye covered

Question 16

CN III - Oculomotor

Answer 16

Type: motor
Fxn: eye movement & pupillary reaction
Test: peripheral vision, eye chart, reaction to light

Question 17

CN IV - Trochlear

Answer 17

Type: motor
Fxn: eye movement
Test: test ability to depress & adduct eye

Question 18

CN V - Trigeminal

Answer 18

Type: sensory & motor
Fxn: face sensation & mastication
Test: face sensation & clench teeth

Question 19

CN VI - Abducens

Answer 19

Type: motor
Fxn: eye movement
Test: test ability to abduct eye past midline

Question 20

CN VII - Facial

Answer 20

Type: sensory & motor
Fxn: facial muscles & taste
Test: close eyes & smile; detect various tastes - sweet, sour, salty, bitter

Question 21

CN VIII - Vestibulocochlear

Answer 21

Type: sensory
Fxn: hearing & balance
Test: hearing; balance feet together, eyes open/closedx5sec; test for past-pointing

Question 22

CN IX - Glossopharyngeal

Answer 22

Type: sensory & motor
Fxn: swallow, voice, gag reflex
Test: swallow & say “ahh”; use tongue depressor to elicit gag reflex

Question 23

CN X - Vagus

Answer 23

Type: sensory & motor
Fxn: swallow, voice, gag reflex
Test: swallow & say “ahh”; use tongue depressor to elicit gag reflex

Question 24

CN XI - Accessory

Answer 24

Type: motor
Fxn: SCM & trapezius
Test: rotate/SB neck; shrug shoulders

Question 25

CN XII - Hypoglossal

Answer 25

Type: motor
Fxn: tongue movement
Test: protrude tongue (watch for lateral deviation)