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Anatomy > Muscles Of The Head > Flashcards

Muscles Of The Head Flashcards

0
Q

Insertion of platysma

A

Lower margin of mandible, and skin and muscle at corner of mouth

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1
Q

Origin of platysma

A

Fascia of chest

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2
Q

Action of platysma

A

Tenses skin of neck

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3
Q

Innervation of platysma

A

Facial nerve

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4
Q

Origin of buccinator

A

Molar region of maxilla and mandible

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5
Q

Insertion of buccinator

A

Orbicularis oris

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6
Q

Action of buccinator

A

Compresses cheek

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7
Q

Innervation of buccinator

A

Facial nerve

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8
Q

Origin of mentalis

A

Mandible below incisors

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9
Q

Insertion of mentalis

A

Skin of chin

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10
Q

Action of mentalis

A

Wrinkles chin

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11
Q

Innervation of mentalis

A

Facial nerve

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12
Q

Origin of orbicularis oris

A

Arises indirectly from maxilla and mandible; fibers blended with fibers of other facial muscles associated with the lips

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13
Q

Insertion of orbicularis oris

A

Encircles mouth; inserts into muscle and skin at angles of mouth

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14
Q

Action of orbicularis oris

A

Closes lips

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15
Q

Innervation of orbicularis oris

A

Facial nerve

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16
Q

Origin of depressor anguli oris

A

Body of mandible below incisors

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17
Q

Insertion of depressor anguli oris

A

Skin and muscle at angle of mouth below insertion of zygomaticus

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18
Q

Action of depressor anguli oris

A

Draws corners of mouth inferiorly and laterally

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19
Q

Innervation of depressor anguli oris

A

Facial nerve

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20
Q

Origin of depressor labii inferioris

A

Body of mandible lateral to its midline

21
Q

Insertion of depressor labii inferioris

A

Skin and muscle of lower lip

22
Q

Action of depressor labii inferioris

A

Depresses lower lip

23
Q

Innervation of depressor labii inferioris

A

Facial nerve

24
Q

Origin of Levator labii superioris

A

Zygomatic bone and infraorbital margin of maxilla

25
Q

Insertion of Levator labii superioris

A

Skin and muscle of upper lip

26
Q

Action of Levator labii superioris

A

Opens lips

27
Q

Innervation of Levator labii superioris

A

Facial nerve

28
Q

Origin of risorius

A

Lateral fascia associated with masseter muscle

29
Q

Insertion of risorius

A

Skin at angle of mouth

30
Q

Action of risorius

A

Draws corner of lip laterally

31
Q

Innervation of risorius

A

Facial nerve

32
Q

Origin of zygomaticus

A

Zygomatic bone

33
Q

Insertion of zygomaticus

A

Skin and muscle at corner of mouth

34
Q

Action of zygomaticus

A

Raises lateral corners of mouth

35
Q

Innervation of zygomaticus

A

Facial nerve

36
Q

Origin of orbicularis oculi

A

Frontal and maxillary bones and ligaments around orbit

37
Q

Insertion of orbicularis oculi

A

Tissue of eyelid

38
Q

Action of orbicularis oculi

39
Q

Innervation of orbicularis oculi

A

Facial nerve

40
Q

Origin of corrugator supercilii

A

Arch of frontal bone above nasal bone

41
Q

Insertion of corrugator supercilii

A

Skin of eyebrow

42
Q

Action of corrugator supercilii

A

Draws eyebrows medially and inferiorly

43
Q

Innervation of corrugator supercilii

A

Facial nerve

44
Q

Origin of occipital belly

A

Occipital and temporal (mastoid) bones

45
Q

Insertion of occipital belly

A

Galea aponeurotica

46
Q

Action of occipital belly

A

Foxes aponeurosis and pulls scalp posteriorly

47
Q

Innervation of occipital belly

A

Facial nerve

48
Q

Origin of frontal belly

A

Galea aponeurotica

49
Q

Insertion of frontal belly

A

Skin of eyebrows and root of nose

50
Q

Action of frontal belly

A

Raises eyebrows

51
Q

Innervation of frontal belly

A

Facial nerve

Anatomy (13 decks)

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