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Gross Exam 1 > Exam 1 Muscles > Flashcards

Exam 1 Muscles Flashcards

1
Q

What is the origin of the transverse trapezius muscle?

A

aponeurosis of T1-T4 at spinous process

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2
Q

What is the origin of the ascending trapezius muscle?

A

T5-T12 spinous process

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3
Q

What is the insertion of the descending trapezius muscle?

A

lateral 1/3 of the clavicle

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4
Q

What is the insertion of the transverse trapezius muscle?

A

acromion

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5
Q

What is the insertion of the ascending trapezius muscle?

A

spine of the scapula

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6
Q

What is the action of the trapezius muscle?

A

elevates
depresses
retracts

–> all done to scapula by way of fibers

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7
Q

What is the innervation of the trapezius muscle?

A

Motor: spinal accessory nerve (CN XI)

Sensory: C3, C4

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8
Q

What is the blood supply of the trapezius muscle?

A

transverse cervical artery

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9
Q

What is the origin of the levator scapulae muscle?

A

Transverse process of C1-C4

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10
Q

What is the insertion of the levator scapulae muscle?

A

superior angle of scapula

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11
Q

What is the action of the levator scapulae muscle?

A

elevates the scapula while moving the inferior angle medially

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12
Q

What is the innervation of the levator scapulae muscle?

A

Dorsal scapular nerve

C4, C5

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13
Q

What is the origin of the rhomboid minor muscle?

A

spinous processes of C7 and T1

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14
Q

What is the insertion for the rhomboid minor muscle?

A

medial border of scapula, at root of the spine

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15
Q

What is the innervation for the rhomboid minor muscle?

A

dorsal scapular nerve

C5

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16
Q

origin of rhomboid major

A

T2-T5 spinous processes

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17
Q

insertion of rhomboid major

A

medial border of scapula, from spine to inferior angle

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18
Q

action of rhomboid minor

A

retracts scapula
downwardly rotates glenoid
fixes to thoracic wall

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19
Q

action of rhomboid major

A

retracts scapula
rotates glenoid downwardly
fixes to thoracic wall

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20
Q

innervation of rhomboid major

A

dorsal scapular nerve

C5

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21
Q

origin of lats- vertebral

A

spinous process of T5-T12

thoracolumbar fascia

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22
Q

insertion of lats- vertebral

A

Floor of inter tubercular sulcus of humerus

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23
Q

action of lats- vertebral

A

medial rotation
extension
adduction

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24
Q

innervation of lats- vertebral

A

thoracodorsal nerve C6-C8

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25
Q

origin of lats- scapular

A

inferior angle of scapula

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26
Q

insertion of lats- scapular

A

Floor of inter tubercular sulcus of humerus

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27
Q

action of lats- scapular

A

medial rotation
adduction
extension

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28
Q

innervation of lats- scapular

A

thoracodorsal nerve C6-C8

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29
Q

origin of lats-costal

A

9th to 12th ribs

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30
Q

insertion of lats- costal

A

Floor of inter tubercular sulcus of humerus

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31
Q

action of lats

A

medial rotation
extension
adduction

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32
Q

innervation of lats- costal

A

thoracodorsal nerve

C6-C8

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33
Q

origin of lats- iliac

A

posterior 1/3 of iliac crest

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34
Q

insertion of lats- iliac

A

Floor of inter tubercular sulcus of humerus

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35
Q

action of lats- iliac

A

medial rotation
extension
adduction

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36
Q

innervation of lats- iliac

A

thoracodorsal

C6-C8

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37
Q

What is the origin of the descending trapezius muscle?

A

EOP
superior nuchal line
nuchal ligament
C1-C7 spinous process

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38
Q

serratus posterior superior

action

A

elevates ribs

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39
Q

serratus posterior superior

innervation

A

T2-T5 spinal nerves- anterior rami

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40
Q

serratus posterior inferior

origin

A

T11- L2 spinous processes

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41
Q

serratus posterior inferior

action

A

depresses ribs

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42
Q

serratus posterior inferior

innervation

A

spinal nerves T9-T12 anterior rami

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43
Q

iliocostalis cervicis

origin

A

ribs 3-7

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44
Q

iliocostalis cervicis

insertion

A

C4-C6 transverse processes

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45
Q

iliocostalis cervicis

action

A

bilateral: extends spine
unilateral: laterally bends spine to same side

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46
Q

iliocostalis cervicis

innervation

A

spinal nerves C8- L1 posterior rami, lateral branches

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47
Q

iliocostalis thoracis

origin

A

ribs 7-12

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48
Q

iliocostalis thoracis

insertion

A

ribs 1-6

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49
Q

iliocostalis thoracis

action

A

bilateral: extends spine
unilateral: laterally bends spine to the same side

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50
Q

iliocostalis thoracis

innervation

A

spinal nerves C8-L1 posterior rami, lateral branches

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51
Q

iliocostalis lumborum

origin

A

sacrum
iliac crest
thoracolumbar fascia

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52
Q

iliocostalis lumborum

insertion

A

ribs 6-12
deep layer of thoracolumbar fascia
transverse processes of upper lumbar vertebrae

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53
Q

iliocostalis lumborum

action

A

bilateral: extends spine
unilateral: laterally bends spine to same side

54
Q

iliocostalis lumborum

innervation

A

spinal nerves C8-L1 posterior rami, lateral branches

55
Q

longissimus capitis

origin

A

transverse and articular processes of C4-C7

T1-T3 transverse processes

56
Q

longissimus capitis

insertion

A

mastoid process of temporal bone

57
Q

longissimus capitis

action

A

bilateral: extends head
unilateral: flexes and rotates head to same side

58
Q

longissimus capitis

innervation

A

spinal nerves C1-L5 posterior rami

59
Q

longissimus cervicis

origin

A

T1-T6 transverse processes

60
Q

longissimus cervicis

insertion

A

transverse processes C2-C5

61
Q

longissimus cervicis

action

A

bilateral: extends spine
unilateral: bends spine laterally to same side

62
Q

longissimus cervicis

innervation

A

spinal nerves C1-L5 posterior rami

63
Q

longissimus thoracis

origin

A

sacrum
iliac crest
spinous processes on lumbar vertebrae
transverse processes on lower thoracic vertebrae

64
Q

longissimus thoracis

insertion

A

2nd-12th ribs

transverse processes of thoracic and lumbar vertebrae

65
Q

longissimus thoracis

action

A

bilateral: extends spine
unilateral: bends spine laterally to same side

66
Q

longissimus thoracis

innervation

A

spinal nerves C1-L5 posterior rami

67
Q

spinalis cervicis

origin

A

C5-T2 spinous processes

68
Q

spinalis cervicis

insertion

A

C2-C5 spinous processes

69
Q

spinalis cervicis

action

A

bilateral: extends cervical and thoracic spine
unilateral: bends cervical and thoracic spine to same side

70
Q

spinalis cervicis

innervation

A

posterior rami on spinal nerves

71
Q

spinalis thoracis

origin

A

T10-L3 spinous processes, lateral surfaces

72
Q

spinalis thoracis

insertion

A

T2-T8 spinous processes, lateral surfaces

73
Q

spinalis thoracis

action

A

bilateral: extends cervical and thoracic spine
unilateral: bends thoracic and cervical spine to same side

74
Q

spinalis thoracis

innervation

A

posterior rami on spinal nerves

75
Q

splenius capitis

origin

A

nuchal ligament

C3-C7 spinous processes

76
Q

splenius capitis

insertion

A

lateral superior nuchal line
mastoid process

…of occipital bone

77
Q

splenius cervicis

action

A

bilateral: extends cervical spine and head
unilateral: flexes and rotates head to the same side

78
Q

splenius cervicis

innervation

A

spinal nerves C1-C6 posterior rami

79
Q

semispinalis capitis

origin

A

C4-C7 transverse and articular processes

80
Q

semispinalis capitis

insertion

A

between superior and inferior nuchal line on occipital bone

81
Q

semispinalis capitis

action

A

bilateral: extends thoracic and cervical spine and head
(stabilizes craniovertebral joint)

unilateral: bends head
cervical and thoracic spine to same side
rotates to opposite side

82
Q

semispinalis capitis

innervation

A

posterior rami on spinal nerves

83
Q

semispinalis cervicis

origin

A

T1-T6 transverse processes

84
Q

semispinalis cervicis

insertion

A

C2-C5 spinous processes

85
Q

semispinalis cervicis

action

A

bilateral: extends thoracic and cervical spines and head
(stabilizes craniovertebral joint)

unilateral: bends head
cervical and thoracic spine to same side
rotates to opposite side

86
Q

semispinalis cervicis

innervation

A

posterior rami on spinal nerves

87
Q

multifidus

origin

A

C2-sacrum

b/w transverse and spinous processes, skipping two to four vertebrae

88
Q

multifidus

insertion

A

C2-sacrum

between transverse and spinous processes, skipping two to four vertebrae

89
Q

multifidus

action

A

bilateral: extends spine

unilateral: flexes spine to same side
rotates to opposite side

90
Q

multifidus

innervation

A

posterior rami of spinal nerves

91
Q

rotator breves

origin

A

T1-T12 (between transverse and spinous processes of adjacent vertebrae)

92
Q

rotator breves

insertion

A

T1-T12 (between transverse and spinous processes of adjacent vertebra)

93
Q

rotator breves

action

A

proprioception

94
Q

rotator breves

innervation

A

posterior rami of spinal nerves

95
Q

rotator longus

origin

A

T1-T12 (between transverse and spinous processes, skipping one vertebra)

96
Q

rotator longus

insertion

A

T1-T12 (between transverse and spinous processes, skipping one vertebra)

97
Q

rotator longus

action

A

proprioception

98
Q

rotator longus

innervation

A

posterior rami of spinal nerves

99
Q

obliquus capitis superior

origin

A

C1 transverse process

100
Q

obliquus capitis superior

insertion

A

middle 1/3 of inferior nuchal line

above rectus capitis posterior major

101
Q

obliquus capitis superior

action

A

bilateral: extends head

unilateral: tilts head to same side
rotates to opposite side

102
Q

onliquus capitis superior

innervation

A

C1

posterior ramus= suboccipital nerve

103
Q

obliquus capitis inferior

origin

A

C2 spinous process

104
Q

obliquus capitis inferior

insertion

A

C1 transverse process

105
Q

obliquus capitis inferior

action

A

bilateral: extends heads
unilateral: rotates head to same side

106
Q

obliquus capitis inferior

innervation

A

C1

posterior ramus= suboccipital nerve

107
Q

rectus capitis posterior major

origin

A

C2 spinous process

108
Q

rectus capitis posterior major

insertion

A

middle 1/3 of inferior nuchal line

….of occipital bone

109
Q

rectus capitis posterior major

action

A

bilateral: extends head
unilateral: rotates head to same side

110
Q

rectus capitis posterior major

innervation

A

C1

posterior ramus= suboccipital nerve

111
Q

rectus capitis posterior minor

origin

A

C1 posterior tubercle

112
Q

rectus capitis posterior minor

insertion

A

inner third of inferior nuchal line

…of occipital bone

113
Q

rectus capitis posterior minor

action

A

bilateral: extends head
unilateral: rotates head to same side

114
Q

rectus capitis posterior minor

innervation

A

C1

posterior ramus= suboccipital nerve

115
Q

sternocleidomastoid

origin

A

manubrium of sternum

medial 1/3 of clavicle

116
Q

sternocleidmastoid

insertion

A

mastoid process of temporal bone

superior nuchal line of occipital bone

117
Q

sternocleidomastoid

action

A

bilateral: extends head, aids in respiration when head is fixed
unilateral: tilts head to same side, rotates head to opposite side

118
Q

sternocleidomastoid

innervation

A

motor: accessory nerve CN XI

pain and proprioception: cervical plexus C2, C3

119
Q

anterior scalene

origin

A

C3-C6 anterior tubercles of transverse processes

120
Q

anterior scalene

insertion

A

1st rib scalene tubercle

121
Q

anterior scalene

action

A

with ribs mobile: elevates upper ribs during forced inspiration

with ribs fixed:

bilateral: flexes neck
unilateral: bends cervical spine to same side

122
Q

anterior scalene

innervation

A

direct branches from cervical and brachial plexuses C3-C8

123
Q

middle scalene

origin

A

C1-C2 transverse processes

C3-C7 posterior tubercles of transverse processes

124
Q

middle scalene

insertion

A

1st rib posterior to groove for subclavian artery

125
Q

middle scalene

action

A

with ribs mobile: elevates upper ribs during forced inspiration

with ribs fixed:

bilateral: flexes neck
unilateral: bends cervical spine to same side

126
Q

middle scalene

innervation

A

direct branches from cervical and brachial plexuses C3-C8

127
Q

posterior scalene

origin

A

C5-C7 posterior tubercles of transverse processes

128
Q

posterior scalene

insertion

A

outer surface of 2nd rib

129
Q

posterior scalene

action

A

with ribs mobile: elevates ribs during forced inspiration

with ribs fixed:

bilateral: flexes neck
unilateral: bends cervical spine to same side

130
Q

posterior scalene

innervation

A

direct branches from cervical and brachial plexus C3-C8

Gross Exam 1 (1 decks)

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