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Anatomy > lower limb muscles > Flashcards

lower limb muscles Flashcards

1
Q

adductor brevis origin

A

inferior pubic ramus

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2
Q

adductor brevis insertion

A

lesser trochanter to proximal linea aspera

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3
Q

adductor brevis action

A

adducts and medially rotates the thigh

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4
Q

adductor brevis innervation

A

obturator nerve

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5
Q

adductor magnus origin

A

inferior pubic ramus and ischial tuberosity

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6
Q

adductor magnus insertion

A

linea aspera
adductor tubercle

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7
Q

adductor magnus actions

A

adduction, extension, flexion, medial rotation, lateral rotation

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8
Q

adductor magnus innervation

A

obturator nerve
sciatic nerve

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9
Q

adductor longus innervation

A

obturator nerve

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10
Q

adductor longus action

A

adducts and medially rotates the thigh

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11
Q

adductor longus insertion

A

middle 2/3 linea aspera

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12
Q

adductor longus origin

A

body of pubis

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13
Q

biceps femoris origin

A

long head = ischial tuberosity
short head = linea aspera and lateral supracondylar ridge

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14
Q

biceps femoris insertion

A

head of fibula
lateral tibial condyle

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15
Q

biceps femoris action

A

flexes and laterally rotates the knee
extends the hip

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16
Q

biceps femoris innervation

A

sciatic nerve

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17
Q

extensor digitorum longus origin

A

upper 2/3 anterior surface of fibula and adjacent interosseous membrane

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18
Q

extensor digitorum longus insertion

A

extensor hood
base of middle and distal phalanges

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19
Q

extensor digitorum longus actions

A

extension of the lateral 4 toes at MTP
extension at the IP
assists dorsiflexion of the ankle

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20
Q

extensor digitorum longus innervation

A

deep peroneal nerve

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21
Q

extensor hallucis longus origin

A

middle 1/2 of the anterior surface of fibula and adjacent interosseous membrane

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22
Q

extensor hallucis longus insertion

A

dorsal surface, base of distal phalanx of great toe
may get slips to base of proximal phalanx of first metatarsal

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23
Q

extensor hallucis longus actions

A

extends all joints of the great toe mainly MTP
powerful dorsiflexor

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24
Q

extensor hallucis longus innervation

A

deep peroneal nerve

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25
Q

flexor digitorum longus origin

A

medial aspect posterior surface of tibia

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26
Q

flexor digitorum longus insertion

A

four tendons to the plantar aspect of the distal phalanges

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27
Q

flexor digitorum longus actions

A

flexion of toes 2-5 at DIP, PIP, MTP
Assists plantarflexion of the foot at the ankle joint

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28
Q

Flexor digitorum longus innervation

A

tibial nerve

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29
Q

flexor hallucis longus origin

A

lower 2/3 of posterior surface of fibula and interosseous membrane

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30
Q

flexor hallucis longus insertion

A

plantar surface of the base of the distal phalanx of the great to

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31
Q

flexor hallucis longus actions

A

flexion of all the joints of the great toe
assists plantarflexion

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32
Q

flexor hallucis longus innervation

A

tibial nerve

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33
Q

Gastrocnemius origin

A

femoral condyles

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34
Q

Gastrocnemius insertion

A

posterior surface of calcaneus

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35
Q

Gastrocnemius actions

A

knee flexion and ankle plantarflexion

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36
Q

gastrocnemius innervation

A

tibial nerve

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37
Q

Gemellus inferior action

A

deep external hip rotator

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38
Q

Gemellus superior action

A

deep external hip rotator

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39
Q

Gluteus maximus origin

A

outer surface of posterior ilium, sacrum and coccyx

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40
Q

gluteus maximus insertion

A

ITB and gluteal tuberosity

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41
Q

gluteus maximus action

A

extension and lateral rotation of thigh

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42
Q

gluteus maximus innervation

A

inferior gluteal nerve

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43
Q

gluteus medius origin

A

outer surface of ilium

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44
Q

gluteus medius insertion

A

lateral greater trochanter

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45
Q

gluteus medius action

A

abducts and MR femur

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46
Q

gluteus medius innervation

A

superior gluteal nerve

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47
Q

gluteus minimus origin

A

outer surface of ilium

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48
Q

gluteus minimus insertion

A

anterior surface of greater trochanter

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49
Q

gluteus minimus action

A

abducts and MR femur

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50
Q

gluteus minimus innervation

A

superior gluteal nerve

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51
Q

gracilis origin

A

inferior pubic ramus

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52
Q

gracilis insertion

A

pes anserinus

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53
Q

gracilis actions

A

flexion, MR, adduction of thigh
flexion and MR knee

54
Q

gracilis innervation

A

obturator nerve

55
Q

ilio-psoas origin

A

transverse processes of T12-L4
illiac fossa

56
Q

ilio-psoas insertion

A

lesser trochanter

57
Q

ilio-psoas actions

A

hip flexion

58
Q

ilio-psoas innervation

A

L1-3

59
Q

obturator internus action

A

deep external hip rotator

60
Q

obturator externus action

A

deep external hip rotator

61
Q

pectineus origin

A

superior pubic ramus

62
Q

pectineus insertion

A

lesser trochanter to linea aspera

63
Q

pectineus action

A

flexes and adducts the thigh

64
Q

pectineus innervation

A

femoral nerve

65
Q

peroneus brevis origin

A

lower 2/3 of the lateral surface of the fibula

66
Q

peroneus brevis insertion

A

tubercle on the lateral side of the base of the 5th metatarsal

67
Q

peroneus brevis actions

A

eversion of foot
plantarflexion of ankle

68
Q

peroneus brevis innervation

A

superficial peroneal nerve

69
Q

peroneus longus origin

A

upper 2/3 lateral surface of fibula
lateral tibial condyle
lateral side of fibula head

70
Q

peroneus longus insertion

A

base of 1st metatarsal
medial cuneiform

71
Q

peroneus longus actions

A

eversion and plantarflexion of the foot
supports the arches of the foot

72
Q

peroneus longus innervation

A

superficial peroneal nerve

73
Q

peroneus tertius origin

A

lower 1/4 of medial fibula and adjacent interosseous membrane

74
Q

peroneus tertius insertion

A

base of 5th metatarsal, medial and dorsal aspect

75
Q

peroneus tertius actions

A

weak evertor
weak dorsiflexor

76
Q

peroneus tertius innervation

A

deep peroneal nerve

77
Q

piriformis origin

A

internal surfaces sacrum and gluteal surface of ilium

78
Q

piriformis insertion

A

greater trochanter

79
Q

piriformis action

A

external rotation and abduction of femur

80
Q

piriformis innervation

A

1st and 2nd sacral nerves`

81
Q

plantaris origin

A

lateral supracondylar ridge of femur above lateral head of gastrocnemius

82
Q

plantaris insertion

A

medial side of tendocalcaneus
posterior surface of calcaneus

83
Q

plantaris action

A

insignificant plantarflexor of foot and weak knee flexor

84
Q

plantaris innervation

A

tibial nerve

85
Q

popliteus origin

A

outer surface of lateral femoral condyle

86
Q

popliteus insertion

A

posterior surface of proximal tibia, above soleal line

87
Q

popliteus action

A

unlocks the knee by laterally rotating the femur on fixed tibia, rotates knee medially, flexes knee

88
Q

popliteus innervation

A

tibial nerve

89
Q

quadratus femoris action

A

deep external hip rotator

90
Q

rectus femoris origin

A

long head = AIIS
short head = ilium above acetabulum

91
Q

rectus femoris insertion

A

quadriceps tendon of patella

92
Q

rectus femoris action

A

extends the knee and flexes the hip

93
Q

rectus femoris innervation

A

femoral nerve

94
Q

sartorius origin

A

ASIS

95
Q

sartorius insertion

A

pes anserinus

96
Q

sartorius action

A

flexes, abducts and laterally rotates thigh
medially rotates flexed knee

97
Q

sartorius innervation

A

femoral nerve

98
Q

semimembranosus origin

A

ischial tuberosity

99
Q

semimembranosus insertion

A

posterior aspect of medial tibial condyle

100
Q

semimembranosus action

A

extends hip
flexes and MR knee

101
Q

semimembranosus innervation

A

sciatic nerve

102
Q

semitendinosus origin

A

ischial tuberosity

103
Q

semitendinosus insertion

A

pes anserinus

104
Q

semitendinosus action

A

extend hip
flex and MR knee

105
Q

soleus origin

A

soleal line, posterior surface of tibia
posterior surface of upper 1/3 of fibula including the head

106
Q

soleus insertion

A

fuses with tendon of gastrocnemius to form the upper part of the tendocalcaneus into posterior surface of calcaneus

107
Q

soleus action

A

plantarflexion of foot

108
Q

soleus innervation

A

tibial nerve

109
Q

TFL origin

A

ASIS
lateral iliac crest

110
Q

TFL insertion

A

ITB

111
Q

TFL actions

A

flexes and MR thigh
abducts the hip

112
Q

TFL innervation

A

superior gluteal nerve

113
Q

tibialis anterior origin

A

upper 1/2 to 2/3 lateral surface of tibia and adjacent interosseous membrane

114
Q

tibialis anterior insertion

A

medial surface of medial cuneiform and base of 1st metatarsal
insertion blends with that of peroneus longus

115
Q

tibialis anterior action

A

dorsiflexion of ankle
inversion of foot

116
Q

tibialis anterior innervation

A

deep peroneal nerve

117
Q

tibialis posterior origin

A

med= posterior surface of the tibia and interosseous membrane
lat = proximal posterior surface of fibula

118
Q

tibialis posterior insertion

A

Tubercle on medial side of navicular and plantar surface of medial cuneiform
Slips to plantar surfaces of all tarsal bones except talus

119
Q

tibialis posterior action

A

inversion of foot
assists plantarflexion
supports medial longitudinal arch

120
Q

tibialis posterior innervation

A

tibial nerve

121
Q

vastus intermedius origin

A

upper 2/3 anterior and lateral surfaces of the femur

122
Q

vastus intermedius insertion

A

quadriceps tendon

123
Q

vastus intermedius action

A

extends the knee

124
Q

vastus intermedius innervation

A

femoral nerve

125
Q

vastus lateralis origin

A

lateral femur

126
Q

vastus lateralis insertion

A

quadriceps tendon

127
Q

vastus lateralis action

A

extends the knee

128
Q

vastus lateralis innervation

A

femoral nerve

129
Q

vastus medialis origin

A

medial femur

130
Q

vastus medialis insertion

A

quadriceps tendon

131
Q

vastus medialis action

A

extends the knee

132
Q

vastus medialis innervation

A

femoral nerve

Anatomy (15 decks)

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