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Anatomy E3 > Starred Lecture Items L20 > Flashcards

Starred Lecture Items L20 Flashcards

1
Q

how many bones of the cranium

A

22 bones

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2
Q

parts that make up the face

A

calvaria, floor of cranial cavity, viscerocranium

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3
Q

anterior face bones

A

frontal bone
zygomatic and nasal bones
maxilla
mandible

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4
Q

what is the pterion

A

thin bone on lateral face
“sleepy time button”

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5
Q

temporal bone parts

A

squamous, zygomatic process, tympanic, styloid process, petromastoid

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6
Q

orbital group muscles of the face

A

orbicularis oculi
corrugator supercilii
occipitofrontali

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7
Q

nasal group muscles of the face

A

nasalis
procerus
depressor septi

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8
Q

oral group muscles of the face

A

depressor anguli oris
depressor labii inferioris
mentalis
risorius
orbicularis oris
buccinator

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9
Q

what nerve enervates all muscles of the face

A

facial nerve (CN VII)

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10
Q

palpebral part of the obicularis oculi does what action

A

gently shuts eye

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11
Q

orbital part of the obicularis oculi does what action

A

forcefully shuts the eye (winking)

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12
Q

action of the occipitofrontalis (frontal belly)

A

wrinkles forehead, lifts eyebrows

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13
Q

transverse part of the nasalis action

A

comprises the nasal aperature

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14
Q

alar part of the nasalis action

A

flares the nostril

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15
Q

procerus action

A

draws downt the medial angle of the eyebrow

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16
Q

depressor septi action

A

pulls nose inferiorly

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17
Q

depressor anguli oris action

A

frown

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18
Q

depressor labii inferioris

A

draws lower lip downward and laterally (partial cringe)

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19
Q

mentalis action

A

raises and protrudes lower lip

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20
Q

corrugator supercilii action

A

draws eyebrows medially and downward

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21
Q

risorius action

A

retracts corners of mouth (half-effort grin)

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22
Q

zygomaticus major action

A

smile (corners of mouth up and away)

23
Q

zygomaticus minor action

A

draws upper lip upward (showing teeth)

24
Q

orbicularis oris action

A

closes lips; protrudes lips

25
Q

buccinator action

A

presses cheek against teeth; compresses distended cheeks (think: play the bugle)

26
Q

platysma action

A

tenses the skin of the neck and can bring down corners of the mouth

27
Q

bell’s palsy vs stroke (CVA)

A

both are acute onset
bell’s palsy: whole side of the face (usually one side)
stroke: usually lower side of face

28
Q

definition and characteristics of the mandibular fossa on temporalis bone

A

where the mandibular condyle comes in contact with the glenoid fossa of the temporal bone
flat surface and made of fibrocartilage

29
Q

what is found between the the mandibular fossa and the mandibular head

A

articular disk

30
Q

two parts of the disc of the TMJ joint and function

A

lower part: depression and elevation
upper part: protrusion and retraction

31
Q

what is mastication and what are the muscles involved

A

chewing; masseter, temporalis, and medial and lateral pterygoid

32
Q

masseter action

A

elevates mandible

33
Q

temporalis action

A

elevate and retract the mandible

34
Q

whats the strongest muscle in the body

A

masseter

35
Q

trigeminal nerve (CN5) breaks into what three nerves

A

opthalmic
maxillary
mandibular

36
Q

medial pterygoid two heads and muscle action

A

deep and superficial head
elevate and contralaterally deviate mandible

37
Q

origins and insertions of muscles of mastication

A
38
Q

lateral pterygoid two heads and muscle action

A

upper head and lower head
protrusion and contralaterally deviate mandible

39
Q

what muscles form the sling in the jaw

A

masseter is on outside of jaw
medial pterygoid is on inside of jaw
temporalis is between

40
Q

digastric muscle heads and actions

A

anterior belly: opens mouth by lowering mandible; raises hyoid
posterior belly: pulls hyoid upward and back

41
Q

nerve enervation of digastric muscle

A

anterior belly: trigeminal nerve/mandibular n
posterior belly: facial nerve (VII)

42
Q

ligaments of the tmj joint and what movement do they resist

A

temporomandibular ligament: limits lateral displacement
stylomandibular and sphenomandibular: limits protraction/ mandible coming forward

43
Q

muscles involved in elevation of tmj (closing)

A

masseter temporalis and medial pterugoid

44
Q

muscles involved in depression of tmj (opening)

A

lateral pterygoid (inferior belly)

45
Q

muscles involved in protrusion of tmj

A

masseter
medial pterygoid
lateral pterygoid

46
Q

muscles involved in retrusion of tmj

A

temporalis

47
Q

muscles involved in lateral excursion/deviation of tmj

A

ipsi: temporalis
contra: medial/lateral pterygoid

48
Q

what facial arteries have the external carotid artery as their parent structure

A

transverse facial artery
superficial temporal artery
maxillary artery
lingual artery
facial artery

49
Q

what facial arteries have the maxillary artery as their parent structure

A

infra-orbital artery
buccal artery
mental artery

50
Q

dermatomes of the head and neck

A
51
Q

three signs of TMD (temporomandibular disfunction)

A

orofacial pain
restricted jaw function
joint noise (popping, locking, snapping)

52
Q

bruxism

A

grinding of the teeth

53
Q

plagiocephaly

A

flat side of skull

54
Q

cranial nerve pneumonic

A

oh oh oh to touch and feel very good velvet ah
olfactory
optic
oculomotor
trochleau
trigeminal
abducens
facial
vestibulocochlar
glossopharyngeal
vagus
accessory
hypoglossal

Anatomy E3 (6 decks)

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