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Anatomy > facial musculature > Flashcards

facial musculature Flashcards

1
Q

mm of mastication

A

temporalis, masseter (lateral mm)

med/lat pterygoid

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2
Q

inn of masticory mm

A

CN V3: only motor branch of CN 5

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3
Q

mm deep to the levator labia superioris

A

levator anguli oris

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4
Q

label all mm

A

see attached

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5
Q

corrugator cilli actions

A

draw eyebrows medially/inferirorly

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6
Q

nasalis actions

A

pulls/wrinkles skin on dorsum

depress ala and dialate nostrils

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7
Q

levator labii superioris alaque nasale action

A

depress ala laterally/ dialate nostrils

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8
Q

orbicularis oris actions

A

close lips
protrudes lips
resist distention while blowing

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9
Q

levator labii superioris actions

A

retract/elevate the upper lip

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10
Q

zygomaticus minor action

A

retract/elevate the upper lip

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11
Q

buccinator action

A

press cheek to molars, works to keep food on occlusal surfaces

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12
Q

zygo major action

A

elevate angle of the mouth, bilaterally=smile

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13
Q

levator anguli oris action

A

elevate and retract angle

part dialator of the mouth for smiling/grimicing

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14
Q

risorius action

A

part dilator of the mouth

retract/depresses angle of the mouth

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15
Q

depressor anguli oris action

A

retract/depresses angle of the mouth

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16
Q

depressor labii inferioris action

A

retracts and depresses the lower lip

17
Q

mentalis action

A

elevates/protrudes the lower lip

18
Q

platysma actions

A

depress mandible

tense skin

19
Q

frontalis actions (both bellies)

A

frontal belly: elevate eyebrows, wrinkle forehead and retract scalp
occipital belly: retract scalp

20
Q

orbicularis oculi action

A

close eyelids, palebral part does it gently and orbital part does it tightly

21
Q

portions of orbicularis oculi

A

palebral and orbital

22
Q

label mm and branches of nn

A
23
Q

what nn inn muscles of facial expression

A

CN 7

Anatomy (28 decks)

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