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GRDA > Muscles of facial expression > Flashcards

Muscles of facial expression Flashcards

1
Q

elevates eyebrows and wrinkles skin of forehead; protracts scalp (indicates surprise or curiosity)

A

front belly of occipitofrontalis

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2
Q

front belly of occipitofrontalis innervation

A

temporal

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3
Q

retracts scalp; increasing effectiveness of front belly

A

occipital belly of occipitofrontalis

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4
Q

occipital belly of occipitofrontalis innervation

A

posterior auricular branch

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5
Q

closes eyelids by narrowing the palpebral fissure

A

orbicularis oculi

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6
Q

orbicularis oculi innervation

A

temporal and zygomatic

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7
Q

draws eyebrow medially and inferiorly; creating vertical wrinkles above nose (concern or worry)

A

corrugator supercilli

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8
Q

corrugator supercilli innervation

A

temporal

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9
Q

depresses medial end of eyebrow; wrinkles skin over dorsum of nose (conveying disdain or dislike)

A

procerus plus transverse part of nasalis

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10
Q

procerus and transverse part of nasalis innervation

A

buccal

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11
Q

depresses ala laterally, dilating anterior nasal aperture (flaring nostrils), helps elevate upper lip

A

alar part of nasalis plus levator labi superioris alaeque nasi

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12
Q

alar part of nasalis plus levator labi superioris alaeque nasi innervation

A

buccal

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13
Q

closes oral fissure; phasic contraction compresses and protrudes lips (kissing) or resists distension (when blowing)

A

orbicularis oris

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14
Q

orbicularis oris innervation

A

buccal

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15
Q

part of dilators of mouth; retract (elevate) and/or evert upper lip; deepen nasolabial sulcus (showing sadness)

A

levator labii superior and zygomaticus minor

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16
Q

levator labii superior innervation

A

buccal

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17
Q

zygomaticus minor innervation

18
Q

presses cheek against molar teeth; works with tongue to keep food between occlusal surfaces and out of oral vestibule; resists distension (when blowing)

A

buccinator

19
Q

buccinator innervation

20
Q

part of dilators of mouth; elevate labial commissure; bilaterally to smile (happiness); unilaterally to sneer (disdain)

A

zygomaticus major

21
Q

zygomaticus major innervation

22
Q

part of dilators of mouth; widens oral fissure as when grinning or grimacing

A

levator anguli oris

23
Q

levator anguli oris innervation

24
Q

part of dilators of mouth; depresses labial commissure bilaterally to frown (sadness)

A

risorius and depressor anguli oris

25
Q

risorius innervation

26
Q

depressor anguli oris innervation

A

marginal mandibular

27
Q

part of dilators of mouth; retracts (depresses) and/or everts lower lip (pouting, sadness)

A

depressor labii inferioris

28
Q

depressor labii inferioris innervation

A

marginal mandibular

29
Q

elevates and protrudes lower lip; elevates skin of chin (showing doubt)

30
Q

mentalis innervation

A

marginal mandibular

31
Q

depresses mandible (against resistance); tenses skin of inferior face and neck (conveying tension and stress)

32
Q

platysma innervation

A

marginal mandibular

33
Q

flat digastric muscles with occipital and frontal bellies

A

occipitofrontalis

34
Q

the occipital and frontal bellies of occipitofrontalis share a common tendon called _____

A

epicranial aponeurosis

35
Q

gentle blinking

A

palpebral part of orbicularis oculi

36
Q

courses behind lacrimal sac and aids in drainage of tears (deep part of muscle)

A

lacrimal part of orbicularis oculi

37
Q

winking or squinting to prevent glare of dust

A

orbital part of orbicularis oculi

38
Q

forms oral sphincter

A

orbicularis oris

39
Q

raise upper lips

A

lavetor labii superioris and levator anguli oris

40
Q

raise corners of lips to smile

A

zygomaticus major and minor

41
Q

draws corners of lips laterally

42
Q

compresses cheek and holds food in mouth while chewing

A

buccinator

GRDA (13 decks)

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