Cranial Nerves

Question 1

How to screen for:

Frontalis

Answer 1

Wrinkle forehead

Raise and lower eyebrows

Question 2

How to screen for:

Zygomaticus

Answer 2

Smile and show teeth

Question 3

How to screen for obicularis oris

Answer 3

Puff out cheeks

Question 4

How to screen for obicularis oculi

Answer 4

Close eyes

Question 5

General CN grading procedure

Answer 5

F = WNL
WF = weak function
NF = nonfunctional; severe impairment
0 = absent

Question 6

Olfactory function

Answer 6

Smell

Question 7

Trigeminal function

Answer 7

Chewing/jaw

Question 8

Facial nerve function

Answer 8

Facial expressions, ant 2/3 tongue taste

Question 9

How to test for olfactory nerve function

Answer 9

Sniff cinnamon w one nostril plugged

Question 10

How to test for CN V sensation

Answer 10

Sharp/dull, light touch on forehead, maxillary region, mandibular region

Question 11

How to test for CN V motor

Answer 11

Jaw reflex

Question 12

Optic nerve function

Answer 12

Field testing

Question 13

Oculomotor function

Answer 13

Constrict pupil

Elevate, depress, adduct eye

Question 14

Trochlear nerve function

Answer 14

Depress eye

Question 15

Abducens nerve function

Answer 15

Abduct eye

Question 16

How to test visual CN?

Answer 16

All at the same time

Question 17

How to test CN II alone

Answer 17

Stand behind pt and put fingers on either side of their head w them covering one eye

Question 18

Pupillary light reflex tests which CNs?

Answer 18

II and III

Question 19

Describe the accommodation reaction and which CN it tests for

Answer 19

Finger toward nose, eyes should follow finger

II & III

Question 20

Eye position will tell you….

Answer 20

Which nerves are affected

CN III, IV, VI

Question 21

Ability to pursue an object with one eye covered tests which cranial nerves?

Answer 21

III, IV, VI

Question 22

Vestibulocochlear function

Answer 22

Hearing/balance

Question 23

4 ways to check for vestibulocochlear function

Answer 23

1. Finger to finger
2. Past pointing
3. Nystagmus
4. Gaze fixation

Question 24

These two CNs are responsible for gag reflex

Answer 24

Glossopharyngeal and vagus

Question 25

Two CNs responsible for taste

Answer 25

Glossopharyngeal and facial

Question 26

Vagus nerve function

Answer 26

Soft palate elevation, swallow, speak without hoarseness

Question 27

Accessory nerve function

Answer 27

Upper traps, SCM

Question 28

Hypoglossal nerve function

Answer 28

Tongue protrusion

Question 29

How to test for CN VIII (3)

Answer 29

1. Rubbing fingers near ear 2. Tuning fork on top of head 3. Tuning fork behind ear

Question 30

Saying "ahhhhh" is testing which cranial nerve?

Answer 30

X

Question 31

How to test CN XI?

Answer 31

Resisted shoulder shrug - upper trap

Question 32

How to test for CN XII?

Answer 32

Stick out tongue

Question 33

if my R pterygoid is weak/off, when i open my mouth, my jaw will deviate to which side? which CN does this involve?

Answer 33

R V

Question 34

if the L side of my tongue is weak/off, which side will my tongue deviate toward? which CN does this involve?

Answer 34

L XII

Question 35

if the R side of my palate is off/weak, it will move toward/or away from the R side? which CN does this involve?

Answer 35

away; IX and X

Question 36

name of test with tuning fork on top of head and what CN you would be testing

Answer 36

Weber; vestib VIII

Question 37

name of test with tuning fork behind ear and what CN you would be testing

Answer 37

Rinne; vestib VIII