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Human Anatomy Lab (MOINA) > Muscles for Facial Expression > Flashcards

Muscles for Facial Expression Flashcards

1
Q

buccinator (origin)

A

maxilla and mandible (posterior alveolar process of both bones) and pterygomandibular raphe

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2
Q

buccinator (insertion)

A

modiolus (lateral to angle of mouth)

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3
Q

buccinator (nerve)

A

facial nerve (CN VII)

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4
Q

buccinator (action)

A

compresses cheeks

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5
Q

corrugator supercilii (origin)

A

frontal bone just above nose (lateral to glabella)

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6
Q

corrugator supercilii (insertion)

A

skin of medial portion of eyebrows

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7
Q

corrugator supercilii (nerve)

A

facial nerve (CN VII) - zygomatic branch

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8
Q

corrugator supercilii (action)

A

draws eyebrows downwards and medially (“thinker’s brow”)

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9
Q

depressor anguli oris (origin)

A

along oblique line of mandible; lateral aspect of mental tubercle of mandible

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10
Q

depressor anguli oris (insertion)

A

modiolus (near angle of mouth)

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11
Q

depressor anguli oris (nerve)

A

facial nerve (CN VII)

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12
Q

depressor anguli oris (action)

A

depresses angle of mouth (frown)

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13
Q

depressor labii inferioris (origin)

A

mandible (between symphysis and mental foramen)

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14
Q

depressor labii inferioris (insertion)

A

skin and fascia of lower lip

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15
Q

depressor labii inferioris (nerve)

A

facial nerve (CN VII)

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16
Q

depressor labii inferioris (action)

A

draws lower lip downwards and laterally; everts lower lip

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16
Q

depressor septi nasi (origin)

A

incisive fossa of maxilla

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17
Q

depressor septi nasi (insertion)

A

septum and alar cartilage of nose

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18
Q

depressor septi nasi (nerve)

A

facial nerve (CN VII)

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19
Q

depressor septi nasi (action)

A

constricts nostrils

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20
Q

frontalis (origin)

A

galea aponeurotica

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21
Q

frontalis (insertion)

A

skin and fascia above eyes and nose

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22
Q

frontalis (nerve)

A

temporal branch of facial nerve (CN VII)

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23
Q

frontalis (action)

A

draws scalp posteriorly to raise and wrinkle eyebrows (surprise)

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24
Q

levator anguli oris (origin)

A

below infraorbital foramen of maxilla

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25
Q

levator anguli oris (insertion)

A

modiolus (near angle of mouth)

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26
Q

levator anguli oris (nerve)

A

facial nerve (CN VII)

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27
Q

levator anguli oris (action)

A

elevates angle of mouth (smiling)

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28
Q

levator labii superioris (origin)

A

medial inferior orbital margin of maxilla

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28
Q

levator labii superioris (insertion)

A

upper lip muscles

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29
Q

levator labii superioris (nerve)

A

facial nerve (CN VII)

30
Q

levator labii superioris (action)

A

elevates and everts upper lip

31
Q

levator labii superioris alaeque nasi (origin)

A

frontal process of maxilla

32
Q

levator labii superioris alaeque nasi (insertion)

A

lateral slip: upper lip muscles
medial slip: alar cartilage of nose

33
Q

levator labii superioris alaeque nasi (nerve)

A

facial nerve (CN VII)

34
Q

levator labii superioris alaeque nasi (action)

A

elevates and everts upper lip; flares nostrils

35
Q

mentalis (origin)

A

incisive fossa of mandible

36
Q

mentalis (insertion)

A

skin and fascia of chin

37
Q

mentalis (nerve)

A

facial nerve (CN VII)

38
Q

mentalis (action)

A

elevates and everts lower lip; wrinkles skin on chin

39
Q

nasalis (origin)

A

transverse part: maxilla (lateral to nose)
alar part: maxilla, superior to canine alveolar process

40
Q

nasalis (insertion)

A

transverse part: opposite side nasalis over upper cartilage of nose
alar part: alar cartilage of nose (nasal wing)

41
Q

nasalis (nerve)

A

facial nerve (CN VII)

42
Q

nasalis (action)

A

flares nostrils (particularly in forced respiration)

43
Q

occipitalis (origin)

A

lateral 2/3 of superior nuchal line and external occipital protuberance

44
Q

occipitalis (insertion)

A

galea aponeurotica

45
Q

occipitalis (nerve)

A

posterior auricular branch of facial nerve (CN VII)

46
Q

occipitalis (action)

A

draws scalp posteriorly to raise and wrinkle eyebrows (surprise)

47
Q

orbicularis oculi (origin)

A

orbital portion: nasal process of frontal bone
palpebral portion: palpebral ligament
lacrimal portion: lacrimal crest of lacrimal bone

48
Q

orbicularis oculi (insertion)

A

circumferentially around orbit meeting at origin

49
Q

orbicularis oculi (nerve)

A

zygomatic branch of facial nerve (CN VII)

49
Q

orbicularis oculi (action)

A

closes eye tightly, squinting of eye; depresses upper eyelid, elevates lower eyelid (palpebral part)

50
Q

orbicularis oris (origin)

A

modiolus (just lateral to angle of mouth)

51
Q

orbicularis oris (insertion)

A

circumferentially around mouth; blends with other muscles

52
Q

orbicularis oris (nerve)

A

facial nerve (CN VII)

53
Q

orbicularis oris (action)

A

closes mouth; protrudes lips (puckers lips)

54
Q

platysma (origin)

A

subcutaneous fascia (over deltoid-pectoral region)

54
Q

platysma (insertion)

A

body of mandible and subcutaneous fascia of lower face; angle of mouth

55
Q

platysma (nerve)

A

cervical branch of facial nerve (CN VII)

56
Q

platysma (action)

A

tenses skin over lower neck (creates ridge in skin); depresses mandible, lower lip, and angle of mouth

57
Q

procerus (origin)

A

nasal bone and cartilages

58
Q

procerus (insertion)

A

skin and fascia between eyebrows

59
Q

procerus (nerve)

A

superior buccal branches of facial nerve (CN VII)

60
Q

procerus (action)

A

draws medial eyebrows downwards (menacing expression); wrinkles skin over superior nose

61
Q

risorius (origin)

A

parotid fascia (superficial to masseter)

62
Q

risorius (insertion)

A

modiolus (near angle of mouth)

63
Q

risorius (nerve)

A

facial nerve (CN VII)

64
Q

risorius (action)

A

draws angle of mouth laterally (false smile)

65
Q

zygomaticus major (origin)

A

zygomatic bone (anterior to zygomatic-temporal suture)

66
Q

zygomaticus major (insertion)

A

modiolus (near angle of mouth)

67
Q

zygomaticus major (nerve)

A

facial nerve (CN VII)

68
Q

zygomaticus major (action)

A

elevates angle of mouth (smiling); pulls angle of mouth laterally

69
Q

zygomaticus minor (origin)

A

zygomatic bone (posterior to zygomaticmaxillary suture)

69
Q

zygomaticus minor (insertion)

A

skin, fascia, and muscles of upper lip

70
Q

zygomaticus minor (nerve)

A

facial nerve (CN VII)

71
Q

zygomaticus minor (action)

A

elevates upper lip (smiling); everts upper lip

Human Anatomy Lab (MOINA) (17 decks)

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