CN and modalities

Question 1

somatomotor

Answer 1

GSE

skeletal mm of tongue and extrinsic eye

Question 2

visceromotor

Answer 2

GVE

parasympathetic with CN to smooth and cardiac mm, visceral, salivary, and mucus glands, plus membranes

Question 3

branchiomotor

Answer 3

SVE
skeletal m of branchial arches
(mastication, facial expression, pharynx, larynx)

Question 4

somatosensory

Answer 4

GSA

touch, temp, pain receptors in skin, oral and nasal cavities, pharynx

Question 5

viscerosensory

Answer 5

GVA
stretch receptors of gut
baroreceptors of carotid/aortic bodies
chemoreceptors of gut/carotid body

Question 6

special sensory

Answer 6

SSA- vision, hearing, balance

SVA- smell and taste

Question 7

what modalities is CN I

Answer 7

SVA

Question 8

what modalities is CN II

Answer 8

SSA

Question 9

what modalities is CN III

Answer 9

GSE and GVE

Question 10

what modalities is CN IV

Answer 10

GSE

Question 11

what modalities is CN V

Answer 11

SVE and GSA

Question 12

what modalities is CN VI

Answer 12

GSE

Question 13

what modalities is CN VII

Answer 13

GVE, SVE, GSA, GVA, SVA

Question 14

what modalities is CN VIII

Answer 14

SSA

Question 15

what modalities is CN IX

Answer 15

GVE, SVE, GSA, GVA, SVA

Question 16

what modalities is CN X

Answer 16

GVE, SVE, GSA, GVA, SVA

Question 17

what modalities is CN XIc

Answer 17

SVE

Question 18

what modalities is CN XIs

Answer 18

GSE

Question 19

what modalities is CN XII

Answer 19

GSE

Question 20

Olfactory nerve

Answer 20

• nerve tract, not nerve
• primary neurons are receptor cells in epithelial of nasal cavity, axons pierce cribriform plate of ethmoid bone
• outgrowth of cerebrum

Question 21

eye orbit is composed of what nerves

Answer 21

II, III, IV, V1, V2, VI

Question 22

eye orbit is composed of what vasculature

Answer 22

ophthalmic a., retinal a., superior and inferior ophthalmic v.

Question 23

optic nerve

Answer 23

• nerve tract, not nerve
• primary neurons are receptor cells in retina
• outgrowth of diencephalon

Question 24

oculomotor nerve

Answer 24

somatomotor
- superior, medial, inferior rectus mm.
- inferior oblique mm.
- levator palpebrae superioris m
visceromotor
- carries pre-ganglionic parasympathetic fibers from brain to ciliary ganglion
- post-ganglion travel eyeball
- constrictor pupillae m., ciliary m.

Question 25

trochlear nerve

Answer 25

somatomotor to superior oblique m.

Question 26

abducens nerve

Answer 26

somatomotor to lateral rectus m.

Question 27

trigeminal nerve

Answer 27

V1: conjunctiva of eye, bridge of eye, nasal cavity
V2: upper teeth, oral cavity, nasal mucosa
V3: lower teeth, tongue

Question 28

facial nerve

Answer 28

taste anterior 2/3
mucosal lining of nasopharynx and soft palate
facial expression
hearing and balance

Question 29

glossopharyngeal nerve

Answer 29

parotid gland
saliva production
posterior 1/3 tongue
carotid sinus baroreceptors
carotid body chemoreceptors
upper pharynx and middle ear

Question 30

vagus nerve

Answer 30

mucous membranes
thoracic organs
abdominal organs
soft palate mm
pharyngeal restrictors
intrinsic laryngeal muscles
external ear, canal, tympanic membrane
sense of taste

Question 31

cranial part, spinal accessory nerve

Answer 31

accompanies vagus nerve
motor of pharyngeal plexus
musculus uvulae m.
levator veli palatini m.

Question 32

spinal part, spinal accessory nerve

Answer 32

trapezius m.

sternocleidomastoid m.

Question 33

hypoglossal nerve

Answer 33

extrinsic and intrinsic tongue m.