cranial nerves

Question 1

cranial nerve I

Answer 1

olfactory

sense of smell

test each nostril for smell reception with various agents for interpretation

Question 2

cranial nerve II

Answer 2

optic

sense of vision

test vision acuity and visual fields

Question 3

cranial nerve III

Answer 3

oculomotor

pupil constriction and raise eyelids

test pupillary reaction and ability to open and close eyelids

Question 4

cranial nerve IV

Answer 4

trochlear

downward, inward eye movement

test for downward and inward eye movement

Question 5

cranial nerve V

Answer 5

trigeminal

jaw movements and sensation of face and neck

ask pt to open and clench jaws while you palpate the jaw muscles and test for pain/touch/temp sensations

Question 6

cranial nerve VI

Answer 6

abducens

lateral movement of the eyes

test ocular mvoement in all directions

Question 7

cranial nerve VII

Answer 7

facial

muscles of the face and sense of taste on anterior two thirds of tongue

raise eyebrows, smile, puff out cheeks and test for tast sensations

Question 8

cranial nerve VIII

Answer 8

acoustic

sense of hearing

test hearing ability

Question 9

cranial nerve IX

Answer 9

glossopharyngeal

pharyngeal movement and swallowing, sense of taste on posterior one third of tongue

gag em, note ability to swallow, test taste with various agents

Question 10

cranial nerve X

Answer 10

vagus

swallowing and speaking

ask pt to swallow and speak

Question 11

cranial nerve XI

Answer 11

accessory

movement of shoulder muscles

ask pt to shrug shoulders against you resistance

Question 12

cranial nerve XII

Answer 12

hypoglossal

movement and strength of tongue

ask pt to stick their tongue out and move that shit around