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Nuttall's Anatomy > Axial Muscles > Flashcards

Axial Muscles Flashcards

Origin Insertion Action

1
Q

origin of frontalis

A

epicranial aponeurosis

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2
Q

insertion of frontalis

A

skin of forehead

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3
Q

action of frontalis

A

furrow brow

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4
Q

origin of occipitalis

A

superior nuchal line

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5
Q

insertion of occipitalis

A

epicranial aponeurosis

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6
Q

action of occipitalis

A

tense scalp

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7
Q

origin of orbicularis oculi

A

medial orbital margin

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8
Q

insertion of orbicularis oculi

A

eyelids

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9
Q

action of orbicularis oculi

A

close eyelids

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10
Q

origin of orbicularis oris

A

surrounding lips

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11
Q

insertion of orbicularis oris

A

lips at corner of mouth

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12
Q

action of orbicularis oris

A

close lips

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13
Q

origin of depressor anguli oris

A

body of mandible

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14
Q

insertion of depressor anguli oris

A

lips at corner of mouth

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15
Q

action of depressor anguli oris

A

frowning

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16
Q

origin of depressor labii inferioris

A

body of mandible

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17
Q

insertion of depressor labii inferioris

A

lower lip

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18
Q

action of depressor labii inferioris

A

depress lower lip

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19
Q

origin of levator labii superioris

A

maxilla (infraorbital margin)

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20
Q

insertion of levator labii superioris

A

upper lip

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21
Q

action of levator labii superioris

A

elevate upper lip

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22
Q

origin of zygomaticus major

A

temporal process of zygomatic bone

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23
Q

insertion of zygomaticus major

A

lips at corner of mouth

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24
Q

action of zygomaticus major

A

smiling

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25
Q

origin of zygomaticus minor

A

zygomatic bone (medial to temporal process)

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26
Q

insertion of zygomaticus minor

A

lips at corner of mouth

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27
Q

action of zygomaticus minor

A

smiling

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28
Q

origin of buccinator

A

maxilla and mandible

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29
Q

insertion of buccinator

A

orbicularis oris

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30
Q

action of buccinator

A

compress cheeks

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31
Q

origin of inferior rectus

A

sphenoid

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32
Q

insertion of inferior rectus

A

inferior surface of eye

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33
Q

action of inferior rectus

A

eye looks down

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34
Q

origin of medial rectus

A

sphenoid

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35
Q

insertion of medial rectus

A

medial surface of eye

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36
Q

action of medial rectus

A

rotate eye medially (adduct)

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37
Q

origin of superior rectus

A

sphenoid

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38
Q

insertion of superior rectus

A

superior surface of eye

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39
Q

action of superior rectus

A

eye looks up

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40
Q

origin of lateral rectus

A

sphenoid

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41
Q

insertion of lateral rectus

A

lateral surface of eye

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42
Q

action of lateral rectus

A

rotate eye laterally (abduct)

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43
Q

origin of inferior oblique

A

maxilla

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44
Q

insertion of inferior oblique

A

Inferior lateral surface of eye

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45
Q

action of inferior oblique

A

eye rolls (inferior toward midline), look up and lateral

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46
Q

origin of superior oblique

A

sphenoid

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47
Q

insertion of superior oblique

A

superior lateral surface of eye

48
Q

action of superior oblique

A

eye rolls (superior toward midline), look down and lateral

49
Q

origin of masseter

A

zygomatic arch

50
Q

insertion of masseter

A

ramus of mandible

51
Q

action of masseter

A

elevate mandible

52
Q

origin of temporalis

A

temporal line

53
Q

insertion of temporalis

A

coronoid process of mandible

54
Q

action of temporalis

A

elevate mandible

55
Q

origin of lateral pterygoid

A

pterygoid process of sphenoid

56
Q

insertion of lateral pterygoid

A

mandible

57
Q

action of lateral pterygoid

A

depress mandible

58
Q

origin of medial pterygoid

A

pterygoid process of sphenoid

59
Q

insertion of medial pterygoid

A

mandible

60
Q

action of medial pterygoid

A

elevate mandible

61
Q

origin of genioglossus

A

body of mandible

62
Q

insertion of genioglossus

A

tongue

63
Q

action of genioglossus

A

protract tongue

64
Q

origin of hyoglossus

A

hyoid

65
Q

insertion of hyoglossus

A

tongue

66
Q

action of hyoglossus

A

depress tongue

67
Q

origin of styloglossus

A

styloid process of temporal bone

68
Q

insertion of styloglossus

A

tongue

69
Q

action of styloglossus

A

retract tongue

70
Q

origin of sternocleidomastoid: sternal head

A

manubrium

71
Q

origin of sternocleidomastoid: clavicular head

A

sternal (medial) end of clavicle

72
Q

insertion of sternocleidomastoid

A

mastoid process of temporal bone

73
Q

action of sternocleidomastoid

A

rotate or flex neck

74
Q

origin of omohyoid

A

superior scapula and clavicle

75
Q

insertion of omohyoid

A

hyoid

76
Q

action of omohyoid

A

depress hyoid and larynx

77
Q

origin of digastric: superior (posterior) belly

A

mastoid process of temporal bone

78
Q

origin of digastric: inferior (anterior) belly

A

body of mandible

79
Q

insertion of digastric

A

hyoid

80
Q

action of digastric

A

elevate hyoid or depress mandible

81
Q

origin of sternohyoid

A

manubrium

82
Q

insertion of sternohyoid

A

hyoid

83
Q

action of sternohyoid

A

depress hyoid and larynx

84
Q

origin of sternothyroid

A

manubrium

85
Q

insertion of sternothyroid

A

thyroid cartilage of larynx

86
Q

action of sternothyroid

A

depress larynx

87
Q

origin of stylohyoid

A

styloid process of temporal bone

88
Q

insertion of stylohyoid

A

hyoid

89
Q

action of stylohyoid

A

elevate hyoid and larynx

90
Q

origin of splenius capitis

A

cervical and thoracic spinous processes

91
Q

insertion of splenius capitis

A

mastoid process of temporal and nuchal lines of occipital

92
Q

action of splenius capitis

A

extend neck

93
Q

origin of scalenes

A

cervical transverse processes

94
Q

insertion of scalenes

A

ribs 1-2

95
Q

action of scalenes

A

elevate ribs

96
Q

origin of diaphragm

A

xiphoid, ribs, lumbar vertebrae

97
Q

insertion of diaphragm

A

central tendon

98
Q

action of diaphragm

A

expand thoracic cavity

99
Q

origin of external intercostals

A

inferior border of rib

100
Q

insertion of external intercostals

A

superior border of rib

101
Q

action of external intercostals

A

elevate ribs

102
Q

origin of internal intercostals

A

superior border of rib

103
Q

insertion of internal intercostals

A

inferior border of rib

104
Q

action of internal intercostals

A

depress ribs

105
Q

origin of rectus abdominis

A

pubic symphysis

106
Q

insertion of rectus abdominis

A

xiphoid and costal cartilage

107
Q

action of rectus abdominis

A

flex vertebral column

108
Q

origin of external abdominal oblique

A

ribs 5-12

109
Q

insertion of external abdominal oblique

A

iliac crest and linea alba

110
Q

action of external abdominal oblique

A

flex or rotate vertebral column

111
Q

origin of internal abdominal oblique

A

iliac crest and lumbar spinous processes

112
Q

insertion of internal abdominal oblique

A

costal cartilage and linea alba

113
Q

action of internal abdominal oblique

A

flex or rotate vertebral column

114
Q

origin of transversus abdominis

A

ribs 7-12, liac crest, thoracic and lumbar spinous processes (thoracolumbar fascia)

115
Q

insertion of transversus abdominis

A

linea alba and pubis

116
Q

action of transversus abdominis

A

compress abdomen

Nuttall's Anatomy (12 decks)

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