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BIOL 3410 > muscles of facial expression and mastication > Flashcards

muscles of facial expression and mastication Flashcards

1
Q
A

orbicularis oculi

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2
Q
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frontalis

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3
Q
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zygomaticus major

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4
Q
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zygomaticus minor

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5
Q
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orbicularis oris

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6
Q
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risorius

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7
Q
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levator labii superioris

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8
Q
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masseter

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9
Q
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buccinator

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10
Q
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buccinator

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11
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platysma

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12
Q
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temporalis

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13
Q
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occipitalis

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14
Q
A

epicranius

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15
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frontal belly

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16
Q

frontal belly

A

elevates eyebrows in glancing upwards and expressions of surprise; draws scalp forward and wrinkles skin of forehead

galea aponeurotica
subcutaneous tissue of eyebrows

17
Q

occipital belly

A

retracts scalp; fixes galea aponeurotica so frontal belly can act on eyebrows

temporal bone
galea aponeurotica

18
Q

orbicularis oculi

A

sphincter of eyelids; closed eyes in blinking, squinting

lacrimal bone; frontal bone; maxilla
upper and lower eyelids

19
Q

orbicularis oris

A

encircles mouth, closes lips, protrudes lips as in kissing; speech

modiolus of mouth
submucosa and dermis of lips

20
Q

levator labii superioris

A

elevates and everts upper lip in sad, sneering, serious expressions

zygomatic bone and maxilla
muscles of upper lip

21
Q

zygomaticus minor

A

elevates upper lip; exposed upper teeth in smiling

zygomatic bone
muscles of upper lip

22
Q

zygomaticus major

A

draws angle of mouth upward and laterally in laughing

zygomatic bone
superolateral angle of mouth

23
Q

risorius

A

draws angle of mouth laterally in expression of laughing, horror, disdain

zygomatic arch
modiolus

24
Q

buccinator

A

compresses cheek against teeth and gum; directs food between molars

mandible and maxilla
orbicularis oris; submucosa of cheek and lips

25
Q

platysma

A

draws lower lips and angle of mouth downward in expressions of horror or surprise; opening mouth widely

fascia of deltoid and pectoralis major
mandible

26
Q

temporalis

A

elevation of mandible

cranium
coronoid process

27
Q

masseter

A

elevation of mandible

zygomatic arch
mandible

BIOL 3410 (21 decks)

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