cranial nerves 3-6 Flashcards Preview

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Flashcards in cranial nerves 3-6 Deck (28):
1

oculomotor nucleus is which type of nerve

somatomotor

2

the accessory oculomotor nucleus

parasympathetic ( general visceromotor)

3

the oculomotor nerve has two branches?

superior and inferior

4

the superior branch supplies what?

the superior rectus muscle
levator palpebrae superioris

5

the inferior branch of the oculomotor supplies what?

medial rectus
inferior rectus
inferior oblique

6

the accessory oculomotor nerve first goes where and then supplies what?

the preganglionic fiber goes to the ciliary ganglion

from there the secondary fiber goes to the ciliary muscle and sphincter pupilae

7

the trochlear nerve is what type?

general somatomotor

8

the trochlear nerve supplies what?

superior oblique muscle

9

the trigeminal nerve have 3 branches

ophthalmic, maxillary, madibular

10

the ophthalmic first divides into 3 main branches

lacrimal
frontal
nasociliary

11

the lacrimal nerve supplies what?

skin of the lateral corner of the eye

the lacrimal gland is supplies by a communicating branch from post ganglionic parasymp fibers of the zygomatic

12

frontal nerve has what branches?

supratrochlear
supraorbital

13

the supratrochlear and supraorbital supply what?

in general, forhead, upper eyelid, scalp

supratrochlear - medial upper eyelid, central forehead (glabella), root of nose

supraorbital - thru supraorbital notch for conjuctiva, forehead, upper eyelid, scalp, frontal sinus

14

the nasocilary nerve has which branches?

infratrochlear nerve with the ant and post ethmoidal nerve
long ciliary
communicating

15

the nasocillary branches supplies generally?

eye, nose, eyelid

long ciliary - dialator pupilae, ciliary muscle, iris, cornea
communicating - sensory fibers
ethmoidal nerves - nasal mucosae
infratrochlear - skin of eyelid, root of nose

16

the maxillary nerve

ganglionic branches
zygomatic
infraorbital

17

what are the branches of the zygomatic nerve?

zygomaticofacial
zygomaticotemporal

18

zygomaticofacial and zygomaticotemporal supply what?

zygomaticofacial - skin of lateral face and cheekbone
zygomaticotemporal - skin of lateral face to orbit

19

the ganglionic branches have which main branches?

nasal branches, greater palatine, lesser palatine, pharyngeal branches

20

nasal branches are?

posterior superior lateral, posterior superior medial, and scarpa's

21

the posterior superior lateral, posterior superior medial, and scarpa's nerve supply what?

posterior superior lateral - nasal lateral septum, sup and middle nasal concha, ethmoidal sinus
posterior superior medial - nasal septum
scarpa's - thru sphenopalatine foramen, thru incisive foramen for mucous membrane of hard palate

22

the greater palatine nerve has one additional branch called?

posterior inferior nasal branch

23

the greater palatine nerve and posterior inferior nasal branch supply what?

greater palatine: mucosa and glands of hard palate, anterior part of soft palate (post synaptic parasymp and sensory fibers)

post inf nasal nerve - to post inf lateral wall of nasal cavity, may arise independ. of the greater palatine n

24

the lesser palatine nerves supply what? go in which foramen?

usually 2 nerves, they go in lesser palatine foramina.
soft palate mucosa, glands, uvula.
(post synaptic parasymp and sensory fibers)

25

pharyngeal nerve goes where and supplies what?

thru pharyngeal canal (palatovaginal canal) with sensory and parasymp fibers to nasopharynx mucus glands

26

what is the relationship of the pharyngeal nerves (nasal, greater and lesser palatine, pharyngeal) to the pterygopalatine ganglion?

they all pass through the pterygopalatine ggl but DO NOT synapse in it

27

infraorbital nerve has three branches

superior dental plexus:
anterior superior alveolar - incisors, canines
middle superior alveolar - premolars
posterior superior alveolar - maxillary sinus

28

the infraorbital nerve supplies what area?

skin btw lower eyelid and upper lip, eventually give branches that create dental plexus