facial muscles pt. 1 Flashcards

1
Q

origin

A

fixed muscle attachment

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2
Q

insertion

A

movable attachment of the distal end of a muscle, moves towards origin

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3
Q

action

A

what a muscle does

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4
Q

striation

A

alignment of muscle fibers

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5
Q

belly

A

fleshy, central part of a muscle

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6
Q

tendon

A

connective tissue for the attachment of muscles to bones

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7
Q

sphincter

A

circular muscle constricting an orifice

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8
Q

antagonist

A

contrary action of one muscle

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9
Q

aponeurosis

A

a broad flat sheet of connective tissue that serves as a muscle attachment

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10
Q

synergist

A

muscles that cooperate with each other

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11
Q

fascia

A

fibrous membrane that covers supports, and separates muscles as well as unites the skin with the underlying tissue

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12
Q

superficial fascia

A

subcutaneous covering which allows free movement of the skin

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13
Q

deep fascia

A

envelops and binds muscles

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14
Q

frontalis origin

A

galea aponeurotica

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15
Q

frontalis insertion

A

skin of the eyebrows and root of the nose

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16
Q

frontalis action

A

raises the eyebrows and wrinkles nose
- muscle of surprise

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17
Q

galea aponeurotica origin

A

occipital and temporal bones

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18
Q

galea aponeurotica insertion

A

galea aponeurotica

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19
Q

galea aponeurotica action

A

pulling galea aponeurotica stabilizes position of frontal belly

20
Q

temporalis origin

A

temporal fossa

21
Q

temporalis insertion

A

coronoid process of the mandible by a tendon which lies deep to the zygomatic arch

22
Q

temporalis action

A

closes jaw and is the primary muscle of mastication

23
Q

masseter origin

A

zygomatic arch and bone

24
Q

masseter insertion

A

angle and ramus of the mandible

25
Q

masseter action

A

mastication (chewing)

26
Q

orbicularis oculi origin

A

frontal and maxillary bones and ligaments around the eye sockets

27
Q

orbicularis oculi insertion

A

eyelid

28
Q

orbicularis oculi action

A

blinking, squinting, and drawing eyebrows inferiorly

29
Q

orbicularis oculi antagonist

A

levator palpebrae superioris

30
Q

levator palpebrae superioris origin

A

inside the eye socket

31
Q

levator palpebrae superioris insertion

A

eyelid

32
Q

levator palpebrae superioris action

A

open eyes

33
Q

levator palpebrae superioris antagonist

A

orbicularis oculi

34
Q

corrugator origin

A

arch of the frontal bone

35
Q

corrugator insertion

A

skin of the eyebrow

36
Q

corrugator synergistic

A

orbicularis oculi and procerus

37
Q

whats the corrugator known for

A

the frowning muscle

38
Q

procerus origin

A

skin of the nose

39
Q

procerus insertion

A

forehead

40
Q

procerus action

A

draws eyebrows downward

41
Q

procerus synergistic

A

corrugator and orbicularis oculi

42
Q

orbicularis oris origin

A

mandible, maxilla, and other muscles surrounding the lips

43
Q

orbicularis oris insertion

A

muscles and skin at the angles of the mouth

44
Q

orbicularis oris action

A

purses and protrudes the lips for kissing and whistling
- puckering muscle

45
Q

levator labii superioris origin

A

zygomatic bone and maxilla

46
Q

levator labii superioris insertion

A

muscle and skin of upper lip

47
Q

levator labii superioris action

A

opens lips