Cranial Nerves

Question 1

I

Answer 1

Olfactory

Test: Identify familiar odors Abnormal: Anosmia

Question 2

II

Answer 2

Optic
Visual acuity- defect in absent central vision
Visual fields- defect in peripheral vision, hemianopsia
Shine light- absent light reflex
Direct inspection- papilledema

Question 3

III

Answer 3

Oculomotor
inspection- abnormal= dilated pupil, ptosis, eye turns out and down
EOM- failure to move eye up, in, down
Shine light- absent light reflex

Question 4

IV

Answer 4

trochlear. EOM failure to turn eye down or out

Question 5

V

Answer 5

trigeminal.
superficial touch- absent touch, pain, paresthesias
corneal reflex- no blink
clench teeth- weakness of masseter or temporalis muscles

Question 6

VI

Answer 6

Abducens- EOM muscles to right and left sides

Failure to move laterally, diplopia on lateral gaze

Question 7

VII

Answer 7

Facial
Wrinkle forehead, close eyes tightly- absent or asymmetric
Smile, puff cheeks
3. identify tastes- loss of taste

Question 8

VIII

Answer 8

Acoustic/Vestibucochlear

Hearing acuity- loss of hearing

Question 9

IX`

Answer 9

Glossopharyngeal

Gag reflex- none

Question 10

X

Answer 10

Vagus
Phonate ahhh- uvula deviates
Gag reflex- no gag reflex
Note voice quality- hoarse or brassy, nasal twang, husky
Swallowing- dysphagia, fluids regurgitate through nose

Question 11

XI

Answer 11

Spinal Accessory

turn head, shrug shoulders- absent movement of sternomastoid or trapezius

Question 12

Hypoglossal

Answer 12

Protrude tongue- deviates to side

Wiggle tongue from side to side- slowed rate of movement