cranial nerves

Question 1

olfactory function

Answer 1

smell

Question 2

optic function

Answer 2

vision

Question 3

oculomotor function

Answer 3

eye lid and ball movement

Question 4

trochlear function

Answer 4

moves eye down; superior oblique (abduction, depression, intorsion)

Question 5

ophthalmic function

Answer 5

cornea, lacrimal gland, mucosa, skin

Question 6

maxillary function

Answer 6

upper oral cavity, skin

Question 7

mandibular function

Answer 7

chewing, lower oral cavity

Question 8

abducens function

Answer 8

lateral rectus; abducts eye

Question 9

facial function

Answer 9

taste, tears, saliva, facial expressions

Question 10

vestibulocochlear function

Answer 10

hearing, equilibrium

Question 11

glossopharyngeal function

Answer 11

taste, carotid blood pressure

Question 12

vagus function

Answer 12

taste, digestion, aortic blood pressure, slows heart rate

Question 13

accessory function

Answer 13

sternocleidomastoid and trapezius; swallowing

Question 14

hypoglossal function

Answer 14

tongue movements

Question 15

oculomotor branches

Answer 15

superior ramus

inferior ramus

Question 16

superior ramus of oculomotor

Answer 16

levator palpebrae superioris

superior rectus

Question 17

inferior ramus of oculomotor

Answer 17

medial rectus
inferior rectus
inferior oblique

Question 18

oculomotor ganglion

Answer 18

pre parasympathetics –> ciliary ganglion (CN V short ciliary)

Question 19

trochlear branches

Answer 19

trochlear (sensory motor postsymp) innervates superior oblique

Question 20

ophthalmic branches

Answer 20

ALL SENSORY/Postsymp (short ciliary, lacrimal have post para)
nasociliary (infratrochlear (anterior/posterior ethmoidal), short ciliary, long ciliary)
frontal (supratrochlear, supraorbital)
lacrimal

Question 21

maxillary branches

Answer 21

ALL SENSORY/Postsymp/Postpara
(no postpara at beginning)
pharyngeal
lesser palatine
greater palatine 
nasal palatine
medial posterior superior nasal
lateral posterior superior nasal 
posterior superior alveolar 
middle superior alveolar
anterior superior alveolar 
infraorbital
zygomatic

Question 22

mandibular branches

Answer 22

auricotemporal 
meningeal 
deep temporal
masseteric
lateral pterygoid
medial pterygoid
long buccal
lingual 
inferior alveolar
incisive
mental
nerve to mylohyoid (ant digastric)

Question 23

abducens branches

Answer 23

goes straight to lateral rectus

Question 24

facial branches

Answer 24

n to stapedius
n to posterior digastric
n to stylohyoid
temporal
zygomatic
buccal
marginal meningeal
cervical
chorda tympani
lingual
greater petrosal
lesser palatine
greater palatine
@zygomatic --> lacrimal

Question 25

glossopharyngeal branches

Answer 25

n to stylopharyngeus
n to carotid
lingual
tonsilar
pharyngeal
tympanic
lesser petrosal

Question 26

vagus branches

Answer 26

auricular
carotid
pharyngeal
superior laryngeal (int laryngeal, ext laryngeal)
recurrent laryngeal
vagal trunk

Question 27

accessory branches

Answer 27

none but comes from C1-5

Question 28

hypoglossal branches

Answer 28

none but (genioglossus, styloglossus, hyoglossus, intrinsic muscles of tongue)