Cranial nerves

Question 1

CN I

Answer 1

olfactory nerve
cribriform plate of ethmoid bone
sensory
smell

Question 2

CN II

Answer 2

optic nerve
optic canal/ foramen
sensory
see

Question 3

mneumonic for CN function

Answer 3

Some Say Marry Money But My Brother Says Big Butts Matter More

Question 4

CN III

Answer 4

oculomotor nerve
superior orbital fissure
motor
moves the eye

Question 5

mneumonic for CN

Answer 5

Oh Oh Oh To Touch And Feel Very Good Velvet Such/Ah Heaven

Question 6

CN IV

Answer 6

trochlear nerve
superior orbital fissure
motor
superior oblique muscle of eye

Question 7

CN V1

Answer 7

ophthalmic division of trigeminal nerve
superior orbital fissure and then supraorbital notch/ foramen
both
lacrimal gland, internal eye, skin around forehead eye

Question 8

CN V2

Answer 8

maxillary division of trigeminal nerve
foramen rotundum and then infraorbital foramen
sensory
lower eye, lower nose, upper lips

Question 9

CN V3

Answer 9

mandibular division of trigeminal nerve
foramen ovale and then mental foramen
motor anterior part to muscles of mastication except long buccal
sensory posterior part to scalp (auriculotemporal), anterior 2/3 (lingual), lower teeth (inferior alveolar) except nerve to mylohyoid

Question 10

CN V

Answer 10

trigeminal nerve
both
sensory to muscles of facial expression
motor to muscles of mastication

Question 11

CN VI

Answer 11

abducens nerve
superior orbital fissure
motor
lateral rectus muscle

Question 12

CN VII

Answer 12

facial nerve
stylomastoid foramen 
both (sensory to 2/3 anterior tongue, motor to muscles of facial expression) 
1 posterior branch - posterior auricular nerve
5 anterior branches 
- The Zebra Bit My Cat 
- temporal
- zygomatic
- buccal
- marginal mandibular 
- cervical

Question 13

CN VIII

Answer 13

vestibulocochlear nerve
internal acoustic meatus
both
hearing and balance

Question 14

CN IX

Answer 14

glossopharyngeal nerve
jugular foramen
both
sensory and taste to posterior 1/3 tongue

Question 15

CN X

Answer 15

vagus nerve
jugular foramen
motor
most of soft palate, pharynx, larynx, oesophagus, stomach

Question 16

CN XI

Answer 16

spinal accessory nerve
foramen magnum in, U bend, out of jugular foramen
motor
trapezius, sternocleidomastoid

Question 17

CN XII

Answer 17

hypoglossal nerve
hypoglossal canal
all extrinsic and intrinsic muscles of tongue except palatoglossus
geniohyoid, thyrohyoid and sternothyroid (C1 hitchhikes)

Question 18

ansa cervicalis

Answer 18

C1-C3
superior root (C1) innervates infrahyoid muscles and hitchhikes CN XII
inferior root (C2-3)
superior and inferior roots join below bifurcation of common carotid artery

Question 19

cervical plexus

Answer 19

C1-4
emerges from posterior border of SCM
branches are cutaneous nerves

Question 20

brachial plexus

Answer 20

C5-8-T1
emerges between middle and anterior scalene muscles
upper limbs

Question 21

parasympathetic CN

Answer 21

CN III
CN VII
CN IX
CN X