Important muscles (chiro essentials pg 45-47) Flashcards

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1
Q

What is the origin of the sternocleidomastoid

A

Mastoid

Superior nuchal line

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2
Q

What is the insertion of the sternocleidomastoid

A

Manubrium

medial clavicle

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3
Q

What innervates the Sternocleidomastoid

A

CN XI

ventral rami C2 C3

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4
Q

What is the action of the Sternocleidomastoid

A

Tilt head to shoulder of same side

Rotate head to opposite side

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5
Q

What is the origin of the trapezius

A
Superior nuchal line
EOP
ligamentum nuchae
C7 spinous
All thorasic vertebra
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6
Q

What is the insertion of the trapezius

A

Lateral Clavicle
Acromion process
Spine of scapula

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7
Q

What innervates the Trapezius

A

Spinal part CN XI
C3
C4

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8
Q

What is the action of the Trapezius

A

Shrugs

Retracts + rotate scapula

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9
Q

What is the origin of the Latissimus dorsi

A

Lower throacic spinous process

Lumbar spinous process

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10
Q

What is the insertion of the Latissimus dorsi

A

Bicipital groove

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11
Q

What innervates the Latissimus dorsi

A

Thoracodorsal nerve (C6 C7 C8)

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12
Q

What is the action of the latissimus dorsi

A

Adducts arm
Extend arm
Medially rotate arm

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13
Q

What is the origin of the levator scapulae

A

Transverse process C1 C2

posterior tubercle C3 C4

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14
Q

What is the insertion of the levator scapulae

A

Spine of scapula

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15
Q

What is the innervation of the Levator scapulae

A

Dorsal Scapular nerve (C5)

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16
Q

What is the action of the Levator scapulae

A

Elevate the scapula

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17
Q

What is the origin on the Scalenus anterior

A

Anterior tubercle or C3 C4 C5 C6

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18
Q

What is the insertion of the anterior scalene

A

First rib

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19
Q

What innervates tthe anterior scalene

A

C4 C5 C6

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20
Q

What is the action of the anterior scalene

A

Ipsilateral lateral flexion of neck

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21
Q

What is the origin of the middle scalene

A

Transverse of C2-C6

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22
Q

What is the insertion of the middle scalene

A

1st wib

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23
Q

What innervates the middle scalene

A

C3-C7

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24
Q

What is the action of the middle scalene

A

Ipsilateral lateral flexion of the neck

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25
Q

What is the origin of the serratus anterior

A

lateral aspect of upper 8 ribs

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26
Q

What is the insertion of the serratus anterior

A

Medial aspect of scapula

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27
Q

What innervates the serratus anterior

A

Long thoracic nerve (C5, C6, C7)

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28
Q

What is the action of the serratus anterior

A

Draws scapula forward

Rotates the scapula

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29
Q

What is the origin of the Deltoid

A

Clavicle
Acromion process
Spine of Scapula

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30
Q

What is the insertion of the deltoid

A

Deltoid tubercel of humerous

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31
Q

What innervates the deltoid

A

Axillary nerve (C5 C6)

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32
Q

What is the action of the deltoid

A
abducts arm (15-90 degrees)
Anterior = flex arm
middle = medially rotate arm
Posterior = medially rotate arm
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33
Q

What is the origin of the pectoralis major

A

Sternum
Upper 6 costal cartilage
Clavicle

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34
Q

What is the insertion of the pectoralis major

A

Bicipital groove

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35
Q

What innervates the pectoralis major

A

Medial (C5-C7) and lateral (C8-T1) pectoral nerve

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36
Q

what is the origin of the supraspinatus

A

Supraspinatus fossa

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37
Q

What is the insertion of the supraspinatus

A

Greater tuberosity of humerus

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38
Q

What innervates the supraspinatous

A

Suprascapular nerve (C5-C6)

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39
Q

What is he action of the supraspinatous

A

Initiates abduction of the arm (0-15 degrees)

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40
Q

What is the origin of the infraspinatous

A

Infraspinatous fossa

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41
Q

What is the insertion of the infraspinatous

A

Greater tuberosity of humerous

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42
Q

What innervates the infraspinatous

A

Suprascapular nerve (C5-C6)

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43
Q

What is the action of the infraspinatous

A

Externally rotates the humerous

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44
Q

What is the origin of the teres major

A

Lateral aspect of scapula

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45
Q

What is the insertion of the teres major

A

Bicipital groove

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46
Q

What innervates the teres major

A

Lower subscapular nerve C5-C6

47
Q

What is the action of the teres major

A

Extend
abduct
medially rotate the arm

48
Q

What is the origin of teres minor

A

Laterl boarder of scapula

49
Q

What is the insertion of the teres minor

A

Greater tuberosity of humerus

50
Q

What innervates the teres minor

A

Axillary nerve C5-C6

51
Q

What is the action of the teres minor

A

Externally rotate arm

52
Q

What is the origin of the subscapularis muscle

A

Ventral scapula

53
Q

What is the insertion of the subscapularis

A

Lesser tuberosity of humerus

54
Q

What innervates the subscapularis

A

Subscapular nerve C5-C6

55
Q

What is the action of the subscapularis

A

Internally rotates and adducts the arm

56
Q

What is the origin of the biceps brachii

A
Coarcoid process (short head)
Supraglenoid tubercle (long head)
57
Q

What is the insertion of the biceps brachii

A

radial tuberosity

58
Q

What innervates the biceps brachii

A

Musculocutaneous nerve (C5 C6 C7)

59
Q

What is the action of the biceps brachii

A

Flex elbow

Supinates the elbow

60
Q

What is the origin of the triceps brachii

A

Infraglenoid tubercle

61
Q

What is the insertion of the triceps brachii

A

Olecranon process

62
Q

What innervates the triceps brachii

A

Radial nerve (C6-C7)

63
Q

What is the action of the Triceps brachii

A

Extends the forearm

Adducts the arm

64
Q

What is the origin of the brachioradialis

A

Lateral supracondylar ridge of humerous

65
Q

What is the insertion of the brachioradialis

A

Styloid process of radaius

66
Q

What innervates the brachioradialis

A

radial nerve (C6-C7)

67
Q

What is the action of the brachioradiallis

A

flexes forearm

68
Q

What is the origin of the pronator teres

A

medial epicondyle of the humerus

69
Q

What is the insertion of the pronator teres

A

radius

70
Q

What innervates the pronator teres

A

Median nerve (C6-C7)

71
Q

What is the origin of the psoas major

A

transverse process L1-L5

72
Q

What is the insertion of the psoas major

A

Lesser trochanter femur

73
Q

What innervates the psoas major

A

L2 L3 L4

74
Q

What is the action of the psoas major

A

Flexes thigh and trunk

75
Q

What is the origin of the gluteus maximus

A

ilium
sacrum
coccyx
sacrotuberous ligament

76
Q

What is the insertion of the gluteus maximus

A

Gluteal tuberosity or the femur

Iliotibial band

77
Q

What innervates the gluteus maximus

A

Inferior gluteal nerve (L5 S1 S2)

78
Q

What is the action of the gluteus maximus

A

Extents and externally rotates the thigh

79
Q

What is the origin of the pirifomris

A

Anterior surface of sacrum

80
Q

What is the insertion of the piriformis

A

Greater trochanter of the femur

81
Q

What innervates the piriformis

A

S1 S2

82
Q

What is the action of the piriformis

A

Externally rotats the thigh

83
Q

What is the origin of the tensor fasciae latae

A

Iliac crest

84
Q

What is the insertion of the tensor fasciae latae

A

Iliotibial tract

85
Q

What innervates the superiot gluteal nerve

A

Tensor fasciae latae

86
Q

What is the action of the tensor fasciae latae

A

extend knee abducts thigh

87
Q

What is the origin of the quads

A

AIIS

88
Q

What is the insertion of the quads

A

Tibial tuberosity

89
Q

What innervates tthe quads

A

Femoral nerve

90
Q

What is the action of the quads

A

Extends knee

Flexes thigh

91
Q

What is the origin of the tibialis anterior

A

Lateral aspect of tibial shaft

92
Q

What is the insertion of the tibialis anterior

A

Medial cueneiform

Base of 1st metatrsal bone

93
Q

What innervaes the tibialis anterior

A

Deep peroneal nerve L4-L5

94
Q

What is the action of the tibialis anteior

A

Dorsiflex + invert foot

95
Q

What is the origin of the extensor hallucis longus

A

Fibula

96
Q

What is the insertion of the extensor hallucis longus

A

Distal phalynx of 1st toe

97
Q

What innervates the extensor hallucis longus

A

Deep peroneal nerve L5 S1

98
Q

What is the action of the extensor hallucis longus

A

Extends big toe

Dorsiflex ankle

99
Q

What is the origin of the peroneus longus

A

Lateral tibial condyle

100
Q

What is the insertion of the peroneous longus

A

Medial cuneiform

101
Q

what innervates the peroneous longus

A

Superficial peroneal nerve L5 S1

102
Q

What is the action of the peroneus longus

A

Plantar flexes and everts the foot

103
Q

What is the origin of the gastrocnemius

A

medial and lateral femoral condyles

104
Q

What is the insertion of the gastrocnemius

A

Calcaneus

105
Q

What innervates the gastrocnemius

A

Tibial nerve

106
Q

What is the action of the gastrocnemius

A

Plantar flexion

107
Q

What is the origin of the soleus

A

Soleal line

108
Q

What is the insertion of the soleus

A

Calcaneal tendon

109
Q

What innervates the soleus

A

Tibial nerve S1 S2

110
Q

What is the action of the soleus

A

Plantar flexes ankle

aids in venous return

111
Q

What is the origin of the tibialis posterior

A

Interosseous membrane

112
Q

What is the insertion of the tibialis posteior

A

Navicular

3 cuneiform bones

113
Q

What innervates the tibialis posterior

A

Tibial nerve

114
Q

What is the action of the tibialis posterior

A

Plantar flexion and inversion of the foot