Superficial Face Flashcards Preview

Neuro I > Superficial Face > Flashcards

Flashcards in Superficial Face Deck (31):
0

What are the layers of the scalp?

S - skin of scalp
C - close, subcutaneous tissue layer
A - aponeurotic layer
L - loos subaponeurotic layer
P - periosteum of the cranium

1

Scalp - skin

stratified squamous keritinized epithelium with varying amount of hair follicles

2

Scalp - close, subcutaneous layer

subdivided into a fatty, avascular superficial portion
highly vascular deep portion

scalp lacerations involving deep portion tend to bleed profusely
tension on this layer causes wouds to separate, making hemostasis difficult

3

Scalp - aponeurotic layer

galea aponeurotica
connects frontalis with occiptalis muscle
peel this away is a surgical approach for a lot of things

4

Scalp - loos subaponeuroitc layer

potential space comprised of loos areolar CT.
infections in this layer may readily spread, via emissary veins to the venous sinuses surrounding the brain

5

scalp - periosteum

poor osteogenic properties.
can fibrose over, bu bone doesn't grow back.

6

see a 'goose egg' on skull

could be hematoma, could be csf,
care about infiltrating bone fragments

7

largest blood vessel to the scalp

superficial temporal artery

8

depressed skull fractures

hematomas - may be bleeding out of dural venous sinus
may have bone in brain tissue and re want to remove that
if we leave it, it will scar and increase risk of siezures

9

What types of nerves supply the scalp

Cervical nerves
branches of trigeminal nerve

10

major nerve of scalp

auriculotemporal nerve V3

11

Greater occipital nerve companion artery

occipital

12

lesser occipital nerve companion artery

posterior auricular

13

auriculotemporal n companion artery

superficial temporal

14

supra orbital n companion artery

supraorbital

15

supratrochlear n companion artery

supratrochlear

16

Venous drainage of the scalp

veins of scalped named for the arteries they run with
drain indirectly into venous sinuses via EMISSARY VEINS
important for spread of scalp infections to brain

17

What important structures are embedded in the parotid gland

facial nerve
retromandibular vein
external carotid artery

18

in the parotid gland, what is facial nerve's relationship to the retromandibular vein

lateral to retromandibular vein

19

what branch of facial do we find first and use it to find the others

buccal

20

Innervation of parotid gland

sympathetic - post ganglionic fibers from internal carotid plexus--> caroticotypmanic nerve-->tympanic plexus-->lesser petrosal nerve-->otic ganglion and auriculotemporal nerve before terminating in gland

parasympathetic - inferior salivatory nucleus--> course in glossopharyngeal nerve, tympanic nerve, tympanic plexus, and lesser petrosal nerve-->synapse in otic ganglion--> parotid gland via auriculotemporal nerve.

21

facial nerve - associated nuclei

descending nucleus of V
solitary nucleus
motor nucleus of VII
superior salivatory nucleus

22

what nucleus receives GSA information from skin of posterior surface of the auricle

descending nucleus of V

23

what nucleus recieves SVA taste from anterior 2/3 of tongue

solitary nucleus

24

what nucleus innervates the muscles of facial expression SVE

motor nucleus of VII

25

what nucleus sends preganglionic parasympathetic fibers to sphenopalatine and submandibular ganglion

superior salivatory nucleus

26

Facial nerve sensory and motor components

SVA - sensory to taste buds on anterior 2/3 of tongue
SVE - motor to muscles of facial expression

27

Etiology of Bell's palsy

may be idiopathic, surgical, traumatic, or due to a tumor of the parotid gland

28

S/S of Bells palsy

drooping of lower lid (ectropion)
piphora (spilling of tears from the eye)
drying of cornea
--->unable to close lid
inability to wink
unequal smile
drooling from corner of mouth
hyperacusis

29

Bell's phenomena

try to close eyes, their eye will roll up

30

Divisions of trigeminal nerve

V1 Ophthalamic
V2 Maxillary
V3 Mandibular