Cranial Nerves

Question 1

I olfactory

Answer 1

sense of smell

Question 2

II optic

Answer 2

sense of vision

Question 3

III oculomotor

Answer 3

pupil constriction, raising of eyelids

Question 4

IV trochlear

Answer 4

downward and inward movement of eyes

Question 5

V trigrminal

Answer 5

motor- jaw movement

sensory- sensation on the face and neck

Question 6

VI abducens

Answer 6

lateral movement of the eyes

Question 7

VII facial

Answer 7

motor- facial muscle movement
sensory- taste on the anterior two thirds of the tongue (sweet and salty)

normal: smile, whistle, wrinkle forehead; able to differentiate tastes among various agents

Question 8

VIII vestibulocochlear

Answer 8

sense of hearing and balance

Question 9

IX glossopharyngeal

Answer 9

motor- pharyngeal movement and swallowing

sensory- taste on posterior 1/3 of tongue (sour and bitter)

normal: GAG REFLEX intact, able to swallow

Question 10

X vagus

Answer 10

swallowing and speaking

Question 11

XI spinal accessory

Answer 11

motor- flexion and rotation of head; shrugging of shoulders

Question 12

XII hypoglossal

Answer 12

motor- tongue movements

normal: can move tongue side to side and stick it out symmetrically and in midline