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Anatomy Exam 3 > Muscles of the Face > Flashcards

Muscles of the Face Flashcards

1
Q

Frontalis origin

A

Skin of eyebrows

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2
Q

Frontalis insertion

A

Galea aponeurotica

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3
Q

Frontalis innervation

A

Facial n. (CN VII)- temporal branch

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4
Q

Frontalis blood supply

A

Supraorbital a.

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5
Q

Frontalis actions

A
  • wrinkles forehead

- raises eyebrows

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6
Q

Orbicularis oculi origin

A
  • frontal bone
  • maxilla
  • lacrimal bone
  • medial palpebral ligament
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7
Q

Orbicularis oculi insertion

A
  • lateral palpebral raphe

- superior and inferior tarsi medial

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8
Q

Orbicularis oculi innervation

A

Facial n. (CN VII)

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9
Q

Orbicularis oculi blood supply

A

Ophthalmic a.

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10
Q

Orbicularis oculi action

A

Closes eyelids gently and forcefully

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11
Q

Nasalis origin

A

Maxilla

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12
Q

Nasalis insertion

A
  • thin aponeurosis on bridge of nose
  • nasalis on opposite side
  • greater alar cartilage
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13
Q

Nasalis innervation

A

Facial n. (CN VII)

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14
Q

Nasalis blood supply

A

Superior labial a.

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15
Q

Nasalis actions

A
  • compress nasal aperture

- draw cartilage downward and laterally opening nostrils

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16
Q

Levator labii superioris alaeque nasi origin

A

Frontal process of maxilla

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17
Q

Levator labii superioris alaeque nasi insertion

A
  • alar cartilage of nose

- upper lip

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18
Q

Levator labii superioris alaeque nasi innervation

A

Facial n. (CN VII)- buccal branch

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19
Q

Levator labii superioris alaeque nasi blood supply

A

Facial a.

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20
Q

Levator labii superioris alaeque nasi action

A
  • Raises upper lip

- opens nostril

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21
Q

Zygomaticus major origin

A

Posterior part of lateral surface of zygomatic bone

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22
Q

Zygomaticus major insertion

A

Skin at corner of mouth

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23
Q

Zygomaticus major innervation

A

Facial n. (CN VII)- zygomatic branch

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24
Q

Zygomaticus major blood supply

A

Facial a.

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25
Q

Zygomaticus major action

A

Draw angle of mouth laterally and upward

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26
Q

Zygomaticus minor origin

A

Anterior part of lateral surface of zygomatic bone

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27
Q

Zygomaticus minor insertion

A

Upper lip just medial to corner of mouth

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28
Q

Zygomaticus minor innervation

A

Facial n. (CN VII)- zygomatic branch

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29
Q

Zygomaticus minor blood supply

A

Facial a.

30
Q

Zygomaticus minor actions

A

Draws upper lip upward

31
Q

Levator labii superioris origin

A

Infraorbital margin of maxilla

32
Q

Levator labii superioris insertion

A

Skin of upper lateral half of upper lip

33
Q

Levator labii superioris innervation

A

Facial n. (CN VII)- buccal branch

34
Q

Levator labii superioris blood supply

A

Facial a.

35
Q

Levator labii superioris action

A
  • Raises upper lip

- helps form nasolabial furrow

36
Q

Depressor labii inferioris origin

A

Anterior part of oblique line of mandible

37
Q

Depressor labii inferioris insertion

A

Lower lip at midline

38
Q

Depressor labii inferioris innervation

A

Facial n. (CN VII)- marginal mandibular branch

39
Q

Depressor labii inferioris blood supply

A

Facial a.

40
Q

Depressor labii inferioris action

A

Draws lower lip downward and laterally

41
Q

Orbicularis oris origin

A
  • Fibers from surrounding facial mm.

- maxilla and mandible at midline

42
Q

Orbicularis oris insertion

A

Forms ellipse around mouth

43
Q

Orbicularis oris innervation

A

Facial n. (CN VII)- buccal branch

44
Q

Orbicularis oris blood supply

A

Superior and inferior labial aa.

45
Q

Orbicularis oris actions

A

Closes and protrudes lips

46
Q

Levator anguli oris origin

A

Maxilla below infraorbital foramen

47
Q

Levator anguli oris insertion

A

Skin at corner of the mouth

48
Q

Levator anguli oris innervation

A

Facial n. (CN VII)- buccal branch

49
Q

Levator anguli oris blood supply

A

Facial a.

50
Q

Levator anguli oris action

A
  • Raises angle of mouth

- helps form nasolabial furrow

51
Q

Depressor anguli oris origin

A

Oblique line of mandible below canine, pre molar, and 1st molar

52
Q

Depressor anguli oris insertion

A

Skin at corner of mouth

53
Q

Depressor anguli oris innervation

A

Facial n. (CN VII)- mandibular branch

54
Q

Depressor anguli oris blood supply

A

Facial a.

55
Q

Depressor anguli oris action

A

Draws angle of mouth downward and laterally

56
Q

Mentalis origin

A

Mandible inferior to incisors

57
Q

Mentalis insertion

A

Skin of chin

58
Q

Mentalis innervation

A

Facial n. (CN VII)- mandibular branch

59
Q

Mentalis blood supply

A

Facial a.

60
Q

Mentalis action

A
  • raises and protrudes lower lip

- wrinkles skin on chin

61
Q

Buccinator origin

A
  • Posterior parts of maxilla and mandible

- pterygomandibular raphe

62
Q

Buccinator insertion

A

Orbicularis oris

63
Q

Buccinator innervation

A

Facial n. (CN VII)- buccal branch

64
Q

Buccinator blood supply

A

Facial a.

65
Q

Buccinator action

A
  • Presses cheeks against teeth

- compresses distended cheeks

66
Q

Masseter origin

A
  • Zygomatic arch

- maxillary process of zygomatic bone

67
Q

Masseter insertion

A

Lateral surface of ramus of mandible

68
Q

Masseter innervation

A

Masseteric n. from V3

69
Q

Masseter blood supply

A

Masseteric a.

70
Q

Masseter action

A

Elevates mandible

Anatomy Exam 3 (2 decks)

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