CRANIAL NERVES

Question 1

CN 2 = ??

Answer 1

OPTIC

SENSORY; DIRECT AND INDIRECT LIGHT REFLEX; ACCOMMODATION

Question 2

CN 3 = ??

Answer 2

OCULOMOTOR

TESTED WITH SO4/LR6 VIA CARDINAL FIELDS OF GAZE
***VERBAL = NO NYSTAGMUS; SMOOTH TRACKING

Question 3

CN 4 =??

Answer 3

TROCHLEAR

DOWN AND IN

Question 4

CN 5 =??

Answer 4

TRIGEMINAL

SENSORY = COTTON MIDLINE OF FACE
MOTOR = MUSCLES OF MASTICATION 

**TIC DOULOUREAUX AKA TRIGEMINAL NEURALGIA
= PAIN ONSIDE OF JAW OR CHEEK;SUDDEN BURNING OR SHOCK-LIKE FACE PAIN

Question 5

CN 6 =?

Answer 5

ABDUCENS ; LATERAL RECTUS

Question 6

CN 7 =??

Answer 6

FACIAL

SENSORY = ANT. 2/3 OF TONGUE–SWEET;SOUR;SALTY

MOTOR = FACIAL EXPRESSION; BELL’S PALSY = UNILATERAL FACIAL EXPRESSION CAUSED BY TRAUMA, VIRUS, OR IMMUNE MEDIATED RESPONSE AND IS NOT PERMANENT; DROOPING EYELID,CORNER OF MOUTH, DROOLING, DRY EYE. FOREHEAD DOES NOT WRINKLE

***STROKE = FOREHEAD DOES WRINKLE!!

Question 7

CN 8 =??

Answer 7

VESTIBULOCOCHLEAR

SENSORY = ROMBERG’S MARCH WITH EYES CLOSED
WEBER; RHINNE
MENIERES = VERTIGO/HEARING LOSS/TINNITUS/FULLNESS OF THE EAR

Question 8

CN 9 =??

Answer 8

GLOSSOPHARYNGEAL

SENSORY = GAG REFLEX/UVULA REFLEX CN 9 IS AFFERRENT AND CN 10 = EFFERENT
MOTOR = TASTE TO POST. 1/3 OF TONGUE = BITTER

Question 9

CN 10 =??

Answer 9

VAGUS

AHHHHHH = UVULA DEVIATES TO OPPOSITE SIDE OF LESION

Question 10

CN 11 =??

Answer 10

SPINAL ACCESSORY

TRAPS AND SCM MUSCLES

Question 11

CN 12 =??

Answer 11

HYPOGLOSSAL

STICK TONGUE OUT = DEVIATES TO SIDE OF LESION