Cranial Nerves

Question 1

olfactory nerve I

Answer 1

function: sensory: smell
pathway: cribriform plate

Question 2

optic nerve II

Answer 2

function: sensory: sight
pathway: optic canal

Question 3

oculomotor nerve III

Answer 3

function: motor: ciliary muscle, constricts pupil, extrinsic eye muscles except superior oblique and lateral rectus
pathway: superior orbital fissure

Question 4

trochlear nerve IV

Answer 4

function: motor: superior oblique muscle of eye
pathway: superior orbital fissure

Question 5

trigeminal nerve V

Answer 5

function: sensory: face, teeth and tongue,
motor: muscles of mastication
contains 3 divisions

Question 6

opthalmic division V1

Answer 6

pathway: superior orbital fissure, supraorbital foramen

Question 7

maxillary division V2

Answer 7

pathway:foramen rotundum inferior orbital fissure, infraorbital foramen

Question 8

mandibular division V3

Answer 8

pathway: foramen ovale, mandibular foramen, mental foramen

Question 9

abducens nerve VI

Answer 9

function: motor, lateral rectus
pathway: superior orbital fissure

Question 10

facial nerve VII

Answer 10

function: sensory: taste anterior 2/3 of tongue,
motor: muscles of the facial expression secretion of saliva and tears
pathway: internal auditory meatus, stylomastoid foramen

Question 11

vestibulocochlear nerve VIII

Answer 11

function: sensory hearing balance and posture
pathway: internal auditory meatus

Question 12

glossopharyngeal nerve IX

Answer 12

function: sensory: taste (posterior 1/3 of tongue)
motor: swallowing and secretion of saliva
pathway: jugular foramen

Question 13

vagus nerve X

Answer 13

function: sensory and motor: 70% of the parasympathetic division of the ANS
pathway: jugular foramen

Question 14

accessory nerve XI

Answer 14

function: motor, trapezius and sternocleidomastoid
pathway: jugular foramen

Question 15

hypoglossal nerve XII

Answer 15

function: motor muscles of the tongue
pathway: hypoglossal canal