cranial nerves

Question 1

are part of what nervous system?

Answer 1

PNS

Question 2

sensory nerves

Answer 2

I,II,VIII

Question 3

motor nerves

Answer 3

III,IV,VI,XI,XII

Question 4

mixed nerves

Answer 4

V,VII,XI,X

Question 5

olfactory nerve

Answer 5

CN I
sensory
- olfaction (smell)
- exits cribriform plate

Question 6

optic nerve

Answer 6

CN II
sensory
- vision (sight)
- exits skull optic canal

Question 7

oculomotor nerve

Answer 7

CN III
motor
- movement of the eyeballs
- exits superior orbital fissure

Question 8

trochlear nerve

Answer 8

CN IV
motor
- movement of the eyeballs
- extis optic canal

Question 9

trigeminal nerve

Answer 9

CN V
- both
sensory: innervation to the face
motor: innervation to muscles of mastication
exits by superior orbital fissure, foramen rotundum, foramen ovale

Question 10

abducens nerve

Answer 10

CN VI
motor
- movement of the eyeballs
- exits superior orbital fissure

Question 11

facial nerve

Answer 11

CN VII
both
- control muscles of facial expression, taste for anterior 2/3 tongue
- exits at stylomastoid foramen

Question 12

vestibulocochlear nerve

Answer 12

CN VIII
sensory
- hearing and equilibrium
- exits at internal acoustic meatus

Question 13

glossopharyngeal nerve

Answer 13

CN IX
both
- taste for posterior 1/3 tongue
- exits jugular foramen

Question 14

vagus nerve

Answer 14

CN X
both
- autonomic regulation
- exits jugular foramen

Question 15

accessory nerve

Answer 15

CN XI
motor
- innervation of trapezius and sternocleidomastoid muscles
- exits foramen magnum

Question 16

hypoglossal nerve

Answer 16

CN XII
motor
- speech, manipulation of food, swallowing
- exits hypoglossal foramen

Question 17

branches of the trigeminal nerve

Answer 17

• ophthalmic branch (V1)
• maxillary branch
• Mandibular branch (V3)

Question 18

ophthalmic branch

Answer 18

v1
- superior orbital fissure

Question 19

maxillary branch

Answer 19

V2
- foramen rotundum

Question 20

mandibular branch

Answer 20

V3
foramen ovale