Cranial nerves

Question 1

Olfactory (1) function

Answer 1

Smell

Question 2

Optic (2) function

Answer 2

Vision

Question 3

Oculomotor (3) function

Answer 3

Constricts or dilates pupils and moves eye lids

Question 4

Trochlear (4) function

Answer 4

Eye movement downwards and towards midline (medial movement)

Question 5

Trigeminal (5) function

Answer 5

senses pain, touch and temperature on face. also allows jaw clenching and movement

Question 6

Abducens (6) function

Answer 6

lateral eye movement

Question 7

facial (7) function

Answer 7

taste, anterior 2/3 of tongue, and movement of facial muscles (expressions)

Question 8

Acoustic (8) function

Answer 8

hearing and balance

Question 9

glossopharyngeal (9) function

Answer 9

taste, 1/3 of tongue, gag reflex, and swallowing

Question 10

Vagus (10) function

Answer 10

swallowing and talking, controls sensations in all organs (hunger)

Question 11

Spinal accessory (11) function

Answer 11

movement of shoulders and head rotation

Question 12

hypoglossal (12) function

Answer 12

movement of tongue

Question 13

test for olfactory

Answer 13

detect smells with oils

Question 14

test for optic

Answer 14

use visual chart and check visual fields

Question 15

test for oculomotor, trochlear, and abducens

Answer 15

check if eyelids are droopy, follows finger left and right, and close and far

Question 16

test for trigeminal

Answer 16

clench teeth and move jaw from side to side. sharp vs dull sensation around face

Question 17

test for facial

Answer 17

smiling, puffing cheeks, raise eyebrows, show teeth

Question 18

test for acoustic

Answer 18

whisper test

Question 19

test for glossopharyngeal and Vagus

Answer 19

saying ‘ah’ soft palate should rise, stimulate gag reflex on SIDE of mouth

Question 20

test for spinal accessory

Answer 20

turn head against hand, move shoulders upwards

Question 21

test for hypoglossal

Answer 21

tongue movement side to side, say “light, tight, dynamite”