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Human Anatomy Lab (MOINA) > ALL MUSCLES (COMPREHENSIVE REVIEW) > Flashcards

ALL MUSCLES (COMPREHENSIVE REVIEW) Flashcards

1
Q

levator palpebrae superioris (origin)

A

lesser wing of sphenoid bone (anterior surface)

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2
Q

levator palpebrae superioris (insertion)

A

upper eyelid skin and fascia

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3
Q

levator palpebrae superioris (nerve)

A

oculomotor nerve (CN III)

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4
Q

levator palpebrae superioris (action)

A

elevates upper eyelid

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5
Q

buccinator (origin)

A

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

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6
Q

buccinator (insertion)

A

modiolus (just lateral to angle of mouth)

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7
Q

buccinator (nerve)

A

facial nerve (CN VII)

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8
Q

buccinator (action)

A

compresses cheeks

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9
Q

corrugator supercilii (origin)

A

frontal bone just above nose (lateral to glabella)

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10
Q

corrugator supercilii (insertion)

A

medial portion of skin of eyebrows

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11
Q

corrugator supercilii (nerve)

A

zygomatic branch of facial nerve (CN VII)

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12
Q

corrugator supercilii (action)

A

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

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13
Q

depressor anguli oris (origin)

A

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

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14
Q

depressor anguli oris (insertion)

A

modiolus (near angle of mouth)

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15
Q

depressor anguli oris (nerve)

A

facial nerve (CN VII)

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16
Q

depressor anguli oris (action)

A

depresses angle of mouth (frown)

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17
Q

depressor labii inferioris (origin)

A

mandible (between symphysis and mental foramen)

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18
Q

depressor labii inferioris (insertion)

A

skin and fascia of lower lip

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19
Q

depressor labii inferioris (nerve)

A

facial nerve (CN VII)

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20
Q

depressor labii inferioris (action)

A

draws lower lip downwards and medially; everts lower lip

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21
Q

depressor septi nasi (origin)

A

incisive fossa of maxilla

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22
Q

depressor septi nasi (insertion)

A

septum and alar cartilage of nose

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23
Q

depressor septi nasi (nerve)

A

facial nerve (CN VII)

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24
Q

depressor septi nasi (action)

A

constricts nostrils

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25
Q

frontalis (origin)

A

galea aponeurotica

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26
Q

frontalis (insertion)

A

skin and fascia above eyes and nose

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27
Q

frontalis (nerve)

A

temporal branch of facial nerve (CN VII)

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28
Q

frontalis (action)

A

draws scalp posteriorly to raise and wrinkle eyebrows (surprise)

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29
Q

levator anguli oris (origin)

A

below infraorbital foramen of maxilla

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30
Q

levator anguli oris (insertion)

A

modiolus (near angle of mouth)

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31
Q

levator anguli oris (nerve)

A

facial nerve (CN VII)

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32
Q

levator anguli oris (action)

A

elevates angle of mouth (smile)

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33
Q

levator labii superioris (origin)

A

medial inferior orbital margin of maxilla

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34
Q

levator labii superioris (insertion)

A

upper lip muscles

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35
Q

levator labii superioris (nerve)

A

facial nerve (CN VII)

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36
Q

levator labii superioris (action)

A

elevates and everts upper lip

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37
Q

levator labii superioris alaeque nasi (origin)

A

frontal process of maxilla

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38
Q

levator labii superior alaeque nasi (insertion)

A

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

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39
Q

levator labii superioris alaeque nasi (nerve)

A

facial nerve (CN VII)

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40
Q

levator labii superioris alaeque nasi (action)

A

elevates and everts upper lip; constricts nostrils

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41
Q

mentalis (origin)

A

incisive fossa of mandible

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42
Q

mentalis (insertion)

A

skin and fascia of chin

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43
Q

mentalis (nerve)

A

facial nerve (CN VII)

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44
Q

mentalis (action)

A

elevates and everts lower lip; wrinkles skin of chin

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45
Q

nasalis (origin)

A

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

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46
Q

nasalis (insertion)

A

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

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47
Q

nasalis (nerve)

A

facial nerve (CN VII)

48
Q

nasalis (action)

A

flares nostrils (particularly in forced respiration)

49
Q

occipitalis (origin)

A

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

50
Q

occipitalis (insertion)

A

galea aponeurotica

51
Q

occipitalis (nerve)

A

posterior auricular branch of facial nerve (CN VII)

52
Q

occipitalis (action)

A

draws scalp posteriorly to raise and wrinkle eyebrows

53
Q

orbicularis oculi (origin)

A

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

54
Q

orbicularis oculi (insertion)

A

circumferentially around orbit meeting at origin

55
Q

orbicularis oculi (nerve)

A

zygomatic branch of facial nerve (CN VII)

56
Q

orbicularis oculi (action)

A

squints eye, closes eye tightly, depresses upper eyelid; palpebral portion elevates lower eyelid

57
Q

orbicularis oris (origin)

A

modiolus (just lateral to angle of mouth)

58
Q

orbicularis oris (insertion)

A

circumferentially around mouth; blends with other muscles

59
Q

orbicularis oris (nerve)

A

facial nerve (CN VII)

60
Q

orbicularis oris (action)

A

closes mouth; protrudes/puckers lips

61
Q

platysma (origin)

A

deep fascia over pectoralis major and deltoid

62
Q

platysma (insertion)

A

body of mandible and angle of mouth

63
Q

platysma (nerve)

A

cervical branch of facial nerve (CN VII)

64
Q

platysma (action)

A

tenses skin over lower neck; depresses mandible and angle of mouth

65
Q

procerus (origin)

A

nasal bone and cartilages

66
Q

procerus (insertion)

A

skin and fascia between eyebrows

67
Q

procerus (nerve)

A

superior buccal branches of facial nerve (CN VII)

68
Q

procerus (action)

A

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

69
Q

risorius (origin)

A

parotid fascia (superficial to masseter)

70
Q

risorius (insertion)

A

modiolus (near angle of mouth)

71
Q

risorius (nerve)

A

facial nerve (CN VII)

72
Q

risorius (action)

A

draws angle of mouth laterally (false small)

73
Q

zygomaticus major (origin)

A

zygomatic bone (anterior to zygomatico-temporal suture)

74
Q

zygomaticus major (insertion)

A

modiolus (near angle of mouth)

75
Q

zygomaticus major (nerve)

A

facial nerve (CN VII)

76
Q

zygomaticus major (action)

A

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

77
Q

zygomaticus minor (origin)

A

zygomatic bone (posterior to zygomaticomaxillaty suture)

78
Q

zygomaticus minor (insertion)

A

skin, fascia, and muscles of upper lip

78
Q

zygomaticus minor (nerve)

A

facial nerve (CN VII)

79
Q

zygomaticus minor (action)

A

elevates and everts upper lip

80
Q

temporalis (origin)

A

temporal fossa of temporalis and sphenoid

81
Q

temporalis (insertion)

A

coronoid process of mandible

82
Q

temporalis (nerve)

A

mandibular branch of trigeminal nerve (V3)

83
Q

temporalis (action)

A

anterior fibers: close (elevate) jaw
middle and posterior fibers: retract mandible (open jaw)

84
Q

internal/medial pterygoid (origin)

A

medial surface of lateral pterygoid plate

85
Q

internal/medial pterygoid (insertion)

A

medial aspect of angle of mandible

86
Q

internal/medial pterygoid (nerve)

A

mandibular branch of trigeminal nerve (V3)

86
Q

internal/medial pterygoid (action)

A

closes (elevates) the jaw

86
Q

masseter (origin)

A

zygomatic arch of temporalis

87
Q

masseter (insertion)

A

angle of mandible

88
Q

masseter (nerve)

A

mandibular branch of trigeminal nerve (V3)

89
Q

masseter (action)

A

elevates (closes) jaw

90
Q

external/lateral pterygoid (origin)

A

superior head: greater wing of sphenoid
inferior head: lateral pterygoid plate

91
Q

external/lateral pterygoid (insertion)

A

joint capsule of condylar process

92
Q

external/lateral pterygoid (nerve)

A

mandibular branch of trigeminal nerve (V3)

93
Q

external/lateral pterygoid (action)

A

protrusion of the jaw; only muscle of the masticators to do so

94
Q

sternocleidomastoid (origin)

A

manubrium sterni and medial third of clavicle

95
Q

sternocleidomastoid (insertion)

A

mastoid process of temporal bone and occipital bone

96
Q

sternocleidomastoid (nerve)

A

spinal accessory nerve and C2 and C3

97
Q

sternocleidomastoid (action)

A

both muscles work together to extend head and flex neck; one muscle rotates head to opposite side

98
Q

posterior belly of digastric (origin)

A

mastoid process of temporal bone

99
Q

posterior belly of digastric (insertion)

A

intermediate tendon is held to hyoid bone by fascial sling

100
Q

posterior belly of digastric (nerve)

A

facial nerve

101
Q

posterior belly of digastric (action)

A

depresses mandible and elevates hyoid bone

102
Q

anterior belly of digastric (origin)

A

body of mandible

103
Q

anterior belly of digastric (insertion)

A

intermediate tendon is held to hyoid bone by fascial sling

104
Q

anterior belly of digastric (nerve)

A

nerve to mylohyoid

105
Q

anterior belly of digastric (action)

A

depresses mandible and elevates hyoid bone

106
Q

stylohyoid (origin)

A

styloid process

107
Q

stylohyoid (insertion)

A

body of mandible

108
Q

stylohyoid (nerve)

A

facial nerve

109
Q

stylohyoid (action)

A

elevates hyoid bone

110
Q

mylohyoid (origin)

A

mylohyoid line of body of mandible

111
Q

mylohyoid (insertion)

A

body of hyoid bone and fibrous raphe

112
Q

mylohyoid (nerve)

A

inferior alveolar nerve

113
Q

mylohyoid (action)

A

elevates floor of mouth and hyoid bone; depresses mandible

Human Anatomy Lab (MOINA) (17 decks)

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