cranial nerves

Question 1

CN I

Answer 1

olfactory

sensory

Question 2

CN II

Answer 2

optic

sensory

Question 3

CN III

Answer 3

oculomotor

motor

Question 4

CN IV

Answer 4

trochlear

motor

Question 5

CN V

Answer 5

trigeminal

both

Question 6

CN VI

Answer 6

abducens

motor

Question 7

CN VII

Answer 7

facial

both

Question 8

CN VIII

Answer 8

vestibulochoclear

sensory

Question 9

CN IX

Answer 9

glossopharyngeal

both

Question 10

CN X

Answer 10

vagus

both

Question 11

CN XI

Answer 11

spinal accessory

motor

Question 12

CN XII

Answer 12

hypoglossal

motor

Question 13

CN I tests

Answer 13

smell

Question 14

anosmia

parasmia

Answer 14

no smell

distorted smell

Question 15

CN II/III test together

Answer 15

vision/accomodation

indirect and direct light reflexes

Question 16

strabismus

ptosis

Answer 16

deviation of both eyes
weak/paralyzed levator palpebrae
-CN III

Question 17

CN IV muscle

Answer 17

superior oblique

Question 18

sensory for CN V

Answer 18

face, corneal, jaw jerk, oculocardiac reflex

anterior 2/3 tongue sensation

Question 19

motor for CN V

Answer 19

muscles of mastication

Question 20

tic douloreaux/trigeminal neuralgia

Answer 20

shock like, lightening pain from a few sec - 2 minutes
repetitive
one sideded
CN V/trigeminal

Question 21

CN VI muscle

Answer 21

lateral rectus

Question 22

sensory for CN VII

Answer 22

NOT PERFORMED
taste: anterior 2/3 tongue
sweet/sour/salty

Question 23

motor for CN VII

Answer 23

facial expression

Question 24

bell’s palsy

Answer 24

• unilateral facial paralysis due to trauma, virus, autoimmune, is temporary
• LMN
• ipsilateral motor loss
• no forehead wrinkle
• CN VII

Question 25

stroke

Answer 25

- UMN - contralat motor loss - forehead wrinkle

Question 26

vestib cochlear for CN VIII

Answer 26

vestib: balance (mittlemeyer, barany, romberg) cochlear: hearing - webber/rinne/whisper

Question 27

meniere's/endolymph hydrops

Answer 27

unknown but prob fluid abnormality causing episodic vertigo, hearing loss, tinnitus

Question 28

reflexes for IX (afferent) and X (efferent)

Answer 28

NOT PERFORMED gag uvula (deviates OPP lesion with ahhh) carotid

Question 29

sensory for CN IX

Answer 29

NOT PERFORMED | taste post 1/3 tongue

Question 30

CN IX motor

Answer 30

stylopharyngeus: elevates pharynx/larynx, dilates pharynx | NOT PERFORMED

Question 31

CN X motor

Answer 31

epiglottis/laryngeal muscles (swallowing) | NOT PERFORMED

Question 32

CN XI action

Answer 32

traps/SCM: shrug/head rotation with resistance

Question 33

torticollis

Answer 33

spasm of scm CN XI boards purposes: do NOT adjust, but spray/stretch, corss frx massage

Question 34

CN XII action

Answer 34

tongue muscles deviates TO SIDE OF lesion look for atrophy, fasciculation

Question 35

graphesthesia

Answer 35

pt closes eyes, draw letter on their hand, test each side | -cant do it: cortical/posterior column lesion

Question 36

sterognosis

Answer 36

pt closes eyes, put familiar object in hand, test bilat | -posterior column/cortical lesion

Question 37

diadochokinesia

Answer 37

hand flips over on lap | -cant do, cerebellar lesion