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spinal lab final > muscle actions > Flashcards

muscle actions Flashcards

1
Q

frontalis belly of the epicranius

A

pulls scalp forward, wrinkles forehead and raises eyebrows

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2
Q

occipitalis belly of the epicranius

A

draws scalp backward, wrinkles forehead and raises eyebrows

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3
Q

palpebral part of the orbicularis oculi

A

closes area of eyelid

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4
Q

orbital part of the orbicularis oculi

A

closes area beyond eyelid toward orbit

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5
Q

corrugator supercilii

A

draws eyebrow medial and down (forms furrow between)

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6
Q

procerus

A

depresses eyebrow medially

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7
Q

compressor naris

A

compresses cartilage at bridge of nose

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8
Q

dilitator naris

A

widens, dilates the nostrils and anterior nasal aperture

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9
Q

depressor septi

A

widens nostrils

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10
Q

orbicularis oris

A

closes mouth, purse and protrude lips

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11
Q

risorius

A

draws back angle of mouth

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12
Q

buccinator

A

compresses cheek against teeth

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13
Q

levator labii superioris

A

raises and everts upper lip

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14
Q

levator labii superioris alaeque nasi

A

raises and everts upper lip, dilates nostril

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15
Q

zygomaticus minor

A

raises upper lip, produces nasolabial groove

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16
Q

zygomaticus major

A

draws angle of mouth up and out

17
Q

depressor anguli oris

A

draws corners of mouth down and out

18
Q

depressor labii inferioris

A

draws lower lip down

19
Q

mentalis

A

raises and protrudes lower lip

20
Q

levator palpebrae superior

A

elevates upper eyelid

21
Q

superior rectus

A

elevates and adducts cornea; intorsion

22
Q

inferior rectus

A

depresses and adducts the cornea; extorsion

23
Q

lateral rectus

A

abduct the eyeball

24
Q

medial rectus

A

adduct the eyeball

25
Q

superior oblique

A

depress and abduct cornea; intorsion

26
Q

inferior oblique

A

elevate and abduct cornea; extorsion

27
Q

masseter

A

elevate and protract mandible ( clench teeth)

28
Q

temporalis

A

elevate, retract mandible (clench teeth)

29
Q

lateral pterygoid

A

protrude mandible, pulls disc forward, depress chin and assist in gliding or rotary movement

30
Q

medial pterygoid

A

elevate and protract mandible, assist in gliding or rotary movement

31
Q

posterior auricular

A

draw ears back

32
Q

anterior auricular

A

elevate and pull ear forward

33
Q

superior auricular

A

elevate ear

34
Q

temporoparietalis

A

tighten scalp, draw back skin over temples

spinal lab final (1 decks)

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