Cranial Nerves

Question 1

Cranial nerve 1

Answer 1

Olfactory- smell

Test: Smell with eyes closed

Question 2

Cranial Nerve 2

Answer 2

Optic- vision and visual fields

Test: Snellen Chart

Question 3

Cranial Nerve 3

Answer 3

Oculomotor- Extraocular movement; movement of sphincter or pupil; movement of cillary muscles of lens
Test: PERRLA, 6 ocular movements

Question 4

Cranial Nerve 4

Answer 4

Trochlear- moves eyeball downward

Test: PERRLA,

Question 5

Cranial Nerve 5

Answer 5

Trigemenial- Sensation of cornea, skin on face, and nasal mucosa
Test: sensation of face cornea, clench teeth and open mouth against resistance

Question 6

Cranial Nerve 6

Answer 6

Abducens- EOM; moves eyeball laterally

Test: Perr

Question 7

Cranial Nerve 7

Answer 7

Facial- Facial expression; taste

Test: smile, raise, eyebrows, frown, puff out checks and taste

Question 8

Cranial Nerve 8

Answer 8

Cochlear-Hearing; air conduction and bone conduction

Test: Watch tick test, Weber’s and Rinne tests

Question 9

Cranial Nerve 9

Answer 9

Glossopharyngeal- swallowing ability, tongue movement

Test: say ahh and watch if palate elevates, and taste

Question 10

Cranial Nerve 10

Answer 10

Vagus- sensation of pharynx and larynx; swallowing

test: swallowing and speech for hoarseness

Question 11

Cranial Nerve 11

Answer 11

Accessory- Head movement; shrugging shoulders

Test: Head movement side to side; shoulder shrugging

Question 12

Cranial Nerve 12

Answer 12

Hypoglossal- protrusion of tongue; move tongue side to side and up and down
Test: stick tongue out and move it up down, side to side