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Anatomy & Physiology I > The Muscular System - Lower Extremities > Flashcards

The Muscular System - Lower Extremities Flashcards

1
Q

Psoas major origin

A

transverse bodies of all lumbar vertebra

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2
Q

Psoas major insertion

A

lesser trochanter of the femur (with iliacus)

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3
Q

Psoas major action

A

hip flexion (or trunk flexion if femur is stationary)

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4
Q

Psoas major innervation

A

lumbar plexus

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5
Q

Iliacus origin

A

iliac fossa of ilium

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6
Q

Iliacus insertion

A

lesser trochanter of femur

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7
Q

Iliacus action

A

hip flexion

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8
Q

Iliacus innervation

A

femoral nerve

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9
Q

Gluteus Maximus origin

A

posterior gluteal line of the ilium, lower sacrum, side of the coccyx

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10
Q

Gluteus Maximus insertion

A

gluteal tuberosity

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11
Q

Gluteus Maximus action

A

abducts, extends, laterally rotates hip joint

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12
Q

Gluteus Maximus innervation

A

inferior gluteal nerve

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13
Q

Gluteus Medius origin

A

gluteal surface of the ilium

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14
Q

Gluteus Medius insertion

A

greater trochanter of the femur

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15
Q

Gluteus Medius action

A

abducts thigh, stabilizes the hip joint

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16
Q

Gluteus Medius innervation

A

superior gluteal nerve

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17
Q

Gluteus Minimus origin

A

Gluteal surface of the ilium

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18
Q

Gluteus Minimus insertion

A

Greater trochanter of the femur

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19
Q

Gluteus Minimus action

A

Abducts thigh, stabilizes hip joint

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20
Q

Gluteus Minimus innervation

A

Superior gluteal nerve

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21
Q

Tensor Fascia Latae (TFL) origin

A

ASIS (anterior superior iliac spine)

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22
Q

Tensor Fascia Latae (TFL) insertion

A

iliotibial tract

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23
Q

Tensor Fascia Latae (TFL) action

A

abducts and internally rotates thigh, stabilizes hip and knee joints

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24
Q

Tensor Fascia Latae (TFL) innervation

A

superior gluteal nerve

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25
Q

Obturator Externus action

A

lateral rotation of thigh

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26
Q

Obturator Externus innervation

A

obturator nerve

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27
Q

Obturator Internus action

A

lateral rotation of thigh

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28
Q

Obturator Internus innervation

A

spinal nerves S1-3

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29
Q

Superior Gemellus action

A

lateral rotation, adduction, extension of hip joint

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30
Q

Superior Gemellus innervation

A

spinal nerves L5, S1

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31
Q

Inferior Gemellus action

A

lateral rotation, adduction, extension of hip joint

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32
Q

Inferior Gemellus innervation

A

spinal nerves L5, S1

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33
Q

Quadratus Femoris action

A

lateral rotation, adduction of hip joint

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34
Q

Quadratus Femoris innervation

A

spinal nerves L5, S1

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35
Q

Piriformis action

A

lateral rotation, adduction, extension of hip joint

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36
Q

Piriformis innervation

A

spinal nerves L5-S2

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37
Q

Biceps Femoris origin

A

Long head - ischial tuberosity, short head - linea aspera of femur, lateral surface

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38
Q

Biceps Femoris insertion

A

head of the fibula, lateral surface

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39
Q

Biceps Femoris action

A

knee flexion, hip extension

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40
Q

Biceps Femoris innervation

A

Long head - tibial nerve, Short head - common fibular nerve

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41
Q

Semitendinosus origin

A

ischial tuberosity

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42
Q

Semitendinosus insertion

A

medial surface of tibia

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43
Q

Semitendinosus action

A

knee flexion

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44
Q

Semitendinosus innervation

A

tibial nerve

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45
Q

Semimembranosus origin

A

ischial tuberosity

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46
Q

Semimembranosus insertion

A

medial condyle of tibia

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47
Q

Semimembranosus action

A

knee flexion

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48
Q

Semimembranosus innervation

A

tibial nerve

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49
Q

Rectus Femoris origin

A

AIIS (anterior inferior iliac spine)

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50
Q

Rectus Femoris insertion

A

common tendon of the quadriceps to tibial tuberosity

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51
Q

Rectus Femoris action

A

knee extension, hip flexion

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52
Q

Rectus Femoris innervation

A

femoral nerve

53
Q

Vastus Medialis origin

A

intertrochanteric line of femur

54
Q

Vastus Medialis insertion

A

patella via quadriceps tendon; tibial tuberosity

55
Q

Vastus Medialis action

A

knee extension

56
Q

Vastus Medialis innervation

A

femoral nerve

57
Q

Vastus Lateralis origin

A

greater trochanter of femur

58
Q

Vastus Lateralis insertion

A

patella via quadriceps tendon; tibial tuberosity

59
Q

Vastus Lateralis action

A

knee extension

60
Q

Vastus Lateralis innervation

A

femoral nerve

61
Q

Vastus Intermedius origin

A

anterior/lateral surfaces of femur

62
Q

Vastus Intermedius insertion

A

common tendon of the quadriceps to tibial tuberosity

63
Q

Vastus Intermedius action

A

knee extension

64
Q

Vastus Intermedius innervation

A

femoral nerve

65
Q

Adductor Longus origin

A

front of the pubis

66
Q

Adductor Longus insertion

A

linea aspera

67
Q

Adductor Longus action

A

adducts, medially rotates thigh

68
Q

Adductor Longus innervation

A

obturator nerve

69
Q

Adductor Brevis origin

A

superior and inferior rami of the pubis

70
Q

Adductor Brevis insertion

A

medial shaft femur, into the upper linea aspera

71
Q

Adductor Brevis action

A

adducts, medially rotates thigh

72
Q

Adductor Brevis innervation

A

obturator nerve

73
Q

Adductor Magnus origin

A

inferior ramus of pubis

74
Q

Adductor Magnus insertion

A

adductor tubercle, medial condyle of the femur, linea aspera

75
Q

Adductor Magnus action

A

adducts, medially rotates thigh

76
Q

Adductor Magnus innervation

A

obturator nerve

77
Q

Gracilis origin

A

lower half of pubic symphysis

78
Q

Gracilis insertion

A

superior shaft of tibia

79
Q

Gracilis action

A

adductor of the thigh, flexes knee

80
Q

Gracilis innervation

A

obturator nerve

81
Q

Pectineus origin

A

pectineal line

82
Q

Pectineus insertion

A

posterior surface of the femur

83
Q

Pectineus action

A

adducts thigh

84
Q

Pectineus innervation

A

femoral nerve

85
Q

Sartorius origin

A

ASIS (anterior superior iliac spine)

86
Q

Sartorius insertion

A

superior shaft of tibia

87
Q

Sartorius action

A

Hip - flexion, abduction, external rotation; Knee - flexion, internal rotation

88
Q

Sartorius innervation

A

femoral nerve

89
Q

Tibialis Anterior origin

A

lateral condyle of tibia

90
Q

Tibialis Anterior insertion

A

base of metatarsal 1, medial cuneiform

91
Q

Tibialis Anterior action

A

dorsiflexion, inversion of foot

92
Q

Tibialis Anterior innervation

A

deep peroneal nerve

93
Q

Extensor Digitorum Longus origin

A

lateral condyle of tibia

94
Q

Extensor Digitorum Longus insertion

A

distal phalanges of digits 2-5

95
Q

Extensor Digitorum Longus action

A

extends digits 2-5, dorsiflexion of foot

96
Q

Extensor Digitorum Longus innervation

A

deep peroneal nerve

97
Q

Extensor Hallucis Longus origin

A

anterior surface of fibula

98
Q

Extensor Hallucis Longus insertion

A

dorsal surface of digit 1 (great toe)

99
Q

Extensor Hallucis Longus action

A

extension of digit 1, dorsiflexion of foot

100
Q

Extensor Hallucis Longus innervation

A

deep peroneal nerve

101
Q

Peroneus Brevis origin

A

lateral, distal fibula

102
Q

Peroneus Brevis insertion

A

lateral side of 5th metatarsal

103
Q

Peroneus Brevis action

A

plantarflex and evert foot (pronate)

104
Q

Peroneus Brevis innervation

A

superficial peroneal nerve

105
Q

Peroneus Longus origin

A

posterior surface of tibia, superior fibula

106
Q

Peroneus Longus insertion

A

base of metatarsal 1

107
Q

Peroneus Longus action

A

plantarflex and evert foot (pronate)

108
Q

Peroneus Longus innervation

A

superficial peroneal nerve

109
Q

Gastrocnemius origin

A

medial and lateral heads: posterior surfaces of medial and lateral femoral condyles

110
Q

Gastrocnemius insertion

A

posterior surface of calcaneus via Achilles tendon

111
Q

Gastrocnemius action

A

plantarflexion of foot, knee flexion

112
Q

Gastrocnemius innervation

A

tibial nerve

113
Q

Soleus origin

A

posterior surface of fibula, medial region of posterior tibia

114
Q

soleus insertion

A

posterior surface of calcaneus via Achilles tendon

115
Q

soleus action

A

plantarflexion of foot

116
Q

soleus innervation

A

tibial nerve

117
Q

Tibialis Posterior origin

A

posterior surface of tibia, interosseous membrane, medial surface of fibula

118
Q

Tibialis Posterior insertion

A

navicular bone, cuneiforms (3), cuboid, and metatarsals 2-4

119
Q

Tibialis Posterior action

A

plantarflexion, inversion and adduction of foot

120
Q

Tibialis Posterior innervation

A

tibial nerve

121
Q

Flexor Digitorum Longus origin

A

posterior surface of tibia

122
Q

Flexor Digitorum Longus insertion

A

inferior surface of distal phalanges 2-5

123
Q

Flexor Digitorum Longus action

A

flexion of digits 2-5; inversion and plantarflexion of foot

124
Q

Flexor Digitorum Longus innervation

A

deep peroneal nerve

125
Q

Flexor Hallusic Longus origin

A

posterior fibula

126
Q

Flexor Hallusic Longus insertion

A

inferior surface of distal phalanx of digit 1 (great toe)

127
Q

Flexor Hallusic Longus action

A

flexion of digit 1, inversion and plantarflexion of foot

128
Q

Flexor Hallusic Longus innervation

A

tibial nerve (deep peroneal branch)

Anatomy & Physiology I (10 decks)

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