cranial nerves

Question 1

mnemonic

Answer 1

oh oh oh to touch and feel very good velvet ah heaven

Question 2

cranial nerve 1

Answer 2

olfactory

Question 3

cranial nerve 2

Answer 3

optic

Question 4

cranial nerve 3

Answer 4

occulomotor

Question 5

cranial nerve 4

Answer 5

trochlea

Question 6

cranial nerve 5

Answer 6

trigeminal

Question 7

cranial nerve 6

Answer 7

abducens

Question 8

cranial nerve 7

Answer 8

facial

Question 9

cranial nerve 8

Answer 9

vestibular

Question 10

cranial nerve 9

Answer 10

glossopharyngeal

Question 11

cranial nerve 10

Answer 11

vagus

Question 12

cranial nerve 11

Answer 12

accessory

Question 13

cranial nerve 12

Answer 13

hypoglossal

Question 14

olfactory nerve origin, sensory or motor, function

Answer 14

• ethmoid bone (cribriform plate)
• sensory
• smell

Question 15

optic nerve origin, sensory or motor, function

Answer 15

• retina
• sensory
• vision

Question 16

occulomotor nerve origin, sensory or motor, function

Answer 16

• mid-brain
• motor
• eyeball muscles (except superior oblique muscle)

Question 17

trochlea nerve origin, sensory or motor, function

Answer 17

• mid-brain
• motor
• 1 eye muscle (superior oblique muscle)

Question 18

trigeminal nerve origin, sensory or motor, function

Answer 18

• pons/mid-brain
• sensory: v1 and v2
• motor: v3 (muscles of mastication)

Question 19

abducens nerve origin, sensory or motor, function

Answer 19

• pons
• motor
• lateral rectus eye muscle

Question 20

facial nerve origin, sensory or motor, function

Answer 20

• pons
• sensory: anterior 2/3 taste of tongue
• motor: muscles of facial expression and all secretory glands (except parotid gland)

Question 21

vestibulocochlear nerve origin, sensory or motor, function

Answer 21

• pons
• sensory
• hearing

Question 22

glossopharyngeal nerve origin, sensory or motor, function

Answer 22

• medulla
• sensory: posterior 1/3 taste of tongue and gag reflex (with CN X)
• motor: parotid gland

Question 23

vagus nerve origin, sensory or motor, function

Answer 23

• medulla
• sensory: rest and digest response
• motor: heart, lungs, digestive system

Question 24

accessory nerve origin, sensory or motor, function

Answer 24

• medulla
• motor
• sternocleidomastoid muscle, trapezius muscle

Question 25

hypoglossal nerve origin, sensory or motor, function

Answer 25

• medulla
• motor
• tongue movement

Question 26

trigeminal nerve branches

Answer 26

• v1 (opthalmic)
• v2 (maxillary)
• v3 (mandibular)