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MUSCLES ETC!!! > lower extremity muscles > Flashcards

lower extremity muscles Flashcards

1
Q

origin of gluteus maximus?

A
  1. posterior Gluteal line of ilium
  2. Sacrum and coccyx
  3. Posterior ligaments of sacroiliac joint
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2
Q

insertion of gluteus maximus?

A

Gluteal tuberosity of femur

Iliotibial tract

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3
Q

action of Gluteus Maximus

A
  1. extends and laterally rotates the femur
  2. Stabilizes knee
  3. Helps stabilize pelvic bone
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4
Q

nerve supply of Gluteus Maximus

A

Inferior Gluteal Nerve

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5
Q

origin of Gluteus Medius?

A

external surface of ilium

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6
Q

insertion of Gluteus medius?

A

greater trochanter of Femur

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7
Q

action of Gluteus Medius

A
  1. abducts the Femur
  2. Medially rotates femur
  3. Helps steady pelvic bone when opposite foot raised off ground
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8
Q

nerve of Gluteus Medius

A

Superior Gluteal nerve

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9
Q

origin of Gluteus Minimus

A

external surface of ilium

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10
Q

insertion of gluteus minimus

A

greater trochanter of femur

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11
Q

action of gluteus minimus

A
  1. abducts the femur
  2. Medially rotates femur
  3. Helps steady pelvic bone when opposite foot raised off ground
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12
Q

nerve of gluteus minimus

A

superior gluteal nerve

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13
Q

origin of piriformis

A

anterior surface of sacrum

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14
Q

insertion of piriformis

A

greater trochanter of femur

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15
Q

action of piriformis

A

laterally rotates the femur

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16
Q

nerve of piriformis

A

S1, S2

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17
Q

origin of superior gemellus

A

spine of the ischium

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18
Q

insertion of superior gemellus

A

greater trochanter of femur

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19
Q

action of the superior gemellus

A

laterally rotates the femur

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20
Q

nerve of the superior gemellus

A

L4, L5, S1, S2

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21
Q

origin of obturator internus

A

internal surface of obturator membrane

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22
Q

insertion of obturator internus

A

greater trochanter of femur

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23
Q

action of obturator internus

A

laterally rotates the femur

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24
Q

nerve of obturator internus

A

L4,L5,S1,S2

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25
Q

origin of inferior gemellus

A

ischial tuberosity

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26
Q

insertion of inferior gemellus

A

greater trochanter of femur

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27
Q

action of inferior gemellus

A

laterally rotates femur

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28
Q

nerve of inferior gemellus

A

L4,L5,S1,S2

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29
Q

origin of obturator externus

A

external surface of obturator membrane

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30
Q

insertion of obturator externus

A

trochanteric fossa of femur

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31
Q

action of obturator externus

A

laterally rotates the femur

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32
Q

nerve of obturator externus

A

obturator nerve

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33
Q

origin of quadratus femoris

A

ischial tuberosity

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34
Q

insertion of quadratus femoris

A

quadratus tubercule of femur

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35
Q

action of quadratus femoris

A

laterally rotates the femur

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36
Q

nerve of quadratus femoris

A

L4,L5,S1,S2

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37
Q

origin of semitendinosus

A

ischial tuberosity

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38
Q

insertion of semitendinosus

A
  1. medial condyle of tibia

2. Proximal posterior shaft of tibia

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39
Q

action of semitendinosus

A
  1. flexion of the leg at the knee
  2. Stabilize hip
  3. Extend femur
  4. Medially rotate leg
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40
Q

nerve of semitendinosus

A

sciatic nerve

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41
Q

origin of semimembranosus

A

ischial tuberosity

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42
Q

insertion of semimembranosus

A

medial condyle of tibia

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43
Q

action of semimembranosus

A
  1. flexion of the leg at the knee
  2. Stabilize hip
  3. Extend femur
  4. Medially rotate leg
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44
Q

nerve of semimembranosus

A

sciatic nerve

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45
Q

origin of long head biceps femoris

A

ischial tuberosity

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46
Q

insertion of long head biceps femoris

A
  1. head of the fibula

2. Lateral condyle of tibia

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47
Q

action of long head biceps femoris

A
  1. flexion of the leg at the knee
  2. Stabilizes hip
  3. Extends femur
  4. Laterally rotates leg
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48
Q

nerve of the long head of biceps femoris

A

sciatic nerve

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49
Q

origin of short head biceps femoris

A

Linea Aspera

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50
Q

insertion of short head biceps femoris

A
  1. head of fibula

2. Lateral condyle of tibia

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51
Q

action of short head biceps femoris

A
  1. flexion of the leg at the knee

2. Laterally rotates leg

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52
Q

nerve of the short head of biceps femoris

A

sciatic nerve

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53
Q

origin of Tensor Fascia Lata

A

crest of the ilium

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54
Q

insertion of Tensor Fascia Lata

A

iliotibial tract

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55
Q

action of the Tensor Fascia Lata

A
  1. helps stabilize knee

2. Flexes, abducts and medially rotates femur

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56
Q

nerve of Tensor Fascia Lata

A

Superior Gluteal nerve

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57
Q

origin of iliacus

A
  1. iliac fossa

2. Sacrum

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58
Q

action of iliacus

A
  1. flexion of the femur at the hip
  2. Assist Flexion of vertebral column
  3. Helps maintain posture (integrity of spine)
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59
Q

insertion of iliacus

A

lesser trochanter of femur

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60
Q

nerve of iliacus

A

femoral nerve

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61
Q

origin of psoas major

A

bodies and transverse processes of lumbars

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62
Q

insertion of psoas major

A

lesser trochanter of femur

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63
Q

action of psoas major

A
  1. flexion of the femur at the hip
  2. Assist Flexion of vertebral column
  3. Helps maintain posture (integrity of spine)
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64
Q

nerve of the psoas major

A

femoral nerve

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65
Q

origin of psoas minor

A

bodies of lumbar vertebrae

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66
Q

insertion of psoas minor

A

iliopubic eminence of pubis

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67
Q

action of psoas minor

A

flexion of pelvic bone (upward movement)

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68
Q

nerve of psoas minor

A

L1 (sometimes L2)

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69
Q

origin of sartorius

A

anterior superior iliac spine

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70
Q

insertion of sartorius

A

superior medial shaft of tibia

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71
Q

action of sartorius

A
  1. abducts and laterally rotates the femur
  2. Medially rotates leg
  3. Assists Flexion hip and knee when both are carried out
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72
Q

nerve of sartorius

A

femoral nerve

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73
Q

origin of rectus femoris

A
  1. anterior inferior iliac spine

2. Acetabulum of pelvic bone

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74
Q

insertion of rectus femoris

A

base of patella

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75
Q

action of rectus femoris

A
  1. extends the leg at the knee
  2. Flexion at hip
  3. Tonus of muscles play role in strengthening knee
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76
Q

nerve of rectus femoris

A

femoral nerve

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77
Q

origin of Vastus Medialis

A

linea aspera of femur

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78
Q

insertion of vastus medialis

A

base of patella

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79
Q

action of vastus medialis

A
  1. extends the leg at the knee

2. Tonus of muscles play role in strengthening knee

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80
Q

nerve of vastus medialis

A

femoral nerve

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81
Q

origin of vastus lateralis

A
  1. linea aspera of femur

2. Greater trochanter of femur

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82
Q

insertion of vastus lateralis

A

base of patella

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83
Q

action of vastus lateralis

A
  1. extends the leg at the knee

2. Tonus of muscles play role in strengthening knee

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84
Q

nerve of vastus lateralis

A

femoral nerve

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85
Q

origin of vastus intermedius

A
  1. linea aspera of femur

2. Antero-lateral aspect of femur

86
Q

insertion of vastus intermedius

A

base of patella

87
Q

action of vastus intermedius

A
  1. extends the leg at the knee

2. Tonus of muscles play role in strengthening knee

88
Q

nerve of vastus intermedius

A

femoral nerve

89
Q

origin of iliopsoas

A

combo of iliacus and psoas major

90
Q

insertion of iliopsoas

A

lesser trochanter of femur

91
Q

action of iliopsoas

A

flexion of the femur at the hip

92
Q

nerve of the iliopsoas

A

femoral nerve

93
Q

origin of gracilis

A
  1. Ramus of ischium

2. Inferior ramus of pubis

94
Q

insertion of gracilis

A

superior medial shaft of tibia

95
Q

action of gracilis

A
  1. adducts the femur

2. Flexion of leg

96
Q

nerve of gracilis

A

obturator nerve

97
Q

origin of pectinus

A

superior rami of pubis

98
Q

insertion of pectinus

A

pectineal line of femur

99
Q

action of pectinus

A
  1. adducts the femur

2. Flexion of femur at hip

100
Q

nerve of pectinus

A

femoral and obturator nerve

101
Q

origin of adductor longus

A

superior ramus of pubis

102
Q

insertion of adductor longus

A

linea aspera of femur

103
Q

nerve of adductor longus

A

obturator nerve

104
Q

origin of adductor brevis

A

inferior ramus of pubis

105
Q

insertion of adductor brevis

A
  1. linea aspera of femur

2. Pectineal line of femur

106
Q

action of adductor longus

A

adducts the femur

107
Q

nerve of adductor brevis

A

obturator nerve

108
Q

action of adductor brevis

A

adducts the femur

109
Q

origin of adductor magnus

A

rami of ischium and pubis

110
Q

insertion of adductor magnus

A
  1. linea aspera of femur

2. Adductor tubercle of femur

111
Q

action of adductor magnus

A
  1. adducts the femur

2. Extends femur at hip

112
Q

nerve of adductor magnus

A

obturator nerve

sciatic nerve

113
Q

Origin of tibialis anterior

A
  1. Shaft of tibia

2. Interosseous membrane

114
Q

Insertion of tibialis anterior

A
  1. 1st metatarsal

2. Medial cuneiform

115
Q

Actions of tibialis anterior?

A
  1. Inverts and dorsal flexes foot

2. Supports medial and longitudinal arch

116
Q

Nerve of tibialis anterior

A

Deep fibular nerve

117
Q

Origin of extensor digitorum longus

A
  1. Lateral condyle
  2. Shaft of fibula
  3. Interosseous membrane
118
Q

Insertion of extensor digitorum longus

A

Distal phalanges of digits 2-5

119
Q

Actions of extensor digitorum longus

A
  1. Extends digits 2-5

2. Dorsal flexes foot

120
Q

Nerve of extensor digitorum longus

A

Deep fibular nerve

121
Q

Origin of fibularis tertius

A

Shaft of fibula

122
Q

Insertion of fibularis tertius

A

5th metatarsal

123
Q

Actions of fibularis tertius

A

Everts and dorsal flexes foot

124
Q

Nerve of fibularis tertius

A

Deep fibular nerve

125
Q

Origin of extensor hallucis longus

A
  1. Shaft of fibula

2. Interosseous membrane

126
Q

Insertion of extensor hallucis longus

A

Distal phalanx digit 1

127
Q

Actions of extensor hallucis longus

A
  1. Extends digit 1

2. Dorsal flexes foot

128
Q

Nerve of extensor hallucis longus

A

Deep fibular nerve

129
Q

Origin of fibularis longus

A

Shaft and head of fibula

130
Q

Insertion of fibularis longus

A
  1. 1st metatarsal

2. Medial cuneiform

131
Q

Actions of fibularis longus

A
  1. Everts and plantar flexes foot

2. Supports lateral and transverse arches

132
Q

Nerve of fibularis longus

A

Superficial fibular nerve

133
Q

Origin of fibularis brevis

A

Shaft of fibula

134
Q

Insertion of fibularis brevis

A

5th metatarsal

135
Q

Actions of fibularis brevis

A
  1. Everts and plantar flexes foot

2. Supports lateral arch

136
Q

Origin of Gastrocnemius

A

Lateral and medial epicondyle of femur

137
Q

Insertion of gastrocnemius

A

Tuberosity of calcaneus

138
Q

Actions of gastrocnemius

A
  1. Inverts and plantar flexes foot

2. Stabilizes ankle

139
Q

Origin of plantaris

A

Lateral supracondylar ridge of femur

140
Q

Insertion of plantaris

A

Tuberosity of calcaneus

141
Q

Actions of plantaris

A

Inverts and plantar flexes foot

142
Q

Nerve of gastrocnemius

A

Tibial nerve

143
Q

Nerve of plantaris

A

Tibial nerve

144
Q

Origin of soleus

A
  1. Soleal line of tibia

2. Shaft and head of fibula

145
Q

Insertion of soleus

A

Tuberosity of calcaneus

146
Q

Actions of soleus

A
  1. Inverts and plantar flexes foot

2. Stabilizes ankle

147
Q

Nerve of soleus

A

Tibial nerve

148
Q

Origin of popliteus

A

Lateral epicondyle of femur

149
Q

Insertion of popliteus

A

Shaft of tibia

150
Q

Actions of popliteus

A
  1. Medially rotates tibia

2. Stabilizes knee

151
Q

Nerve of popliteus

A

Tibial nerve

152
Q

Origin of flexor digitorum longus

A

Shaft of tibia

153
Q

Insertion of flexor digitorum longus

A

Distal phalanges of digits 2-5

154
Q

Actions of flexor digitorum longus

A
  1. Flexes digits 2-5
  2. Plantar flexes foot
  3. Supports medial and lateral arches
155
Q

Nerve of flexor digitorum longus

A

Tibial nerve

156
Q

Origin of flexor hallucis longus

A
  1. Interosseous membrane

2. Shaft of fibula

157
Q

Insertion of flexor hallucis longus

A

Distal phalanx digit 1

158
Q

Actions of flexor hallucis longus

A
  1. Flexes digit 1
  2. Inverts and plantar flexes foot
  3. Supports medial arch
159
Q

Nerve of flexor hallucis longus

A

Tibial nerve

160
Q

Origin of tibialis posterior

A
  1. Interosseous membrane

2. Shaft of fibula and tibia

161
Q

Insertion of tibialis posterior

A
  1. Navicular
  2. Cuneiform
  3. Cuboid
  4. Metatarsals 2-4
162
Q

Actions of tibialis posterior

A
  1. Inverts and plantar flexes foot

2. Supports medial arch

163
Q

Nerve of tibialis posterior

A

Tibial nerve

164
Q

Origin of extensor digitorum brevis

165
Q

Insertion of extensor digitorum brevis

A

Tendons of extensor digitorum longus of digits 2–4

166
Q

Action of extensor digitorum brevis

A

Extends digits 2-4

167
Q

Nerve of extensor digitorum brevis

A

Deep fibular nerve

168
Q

Origin of extensor hallucis brevis

169
Q

Insertion of extensor hallucis brevis

A

Proximal phalanx of digit 1

170
Q

Action of extensor hallucis brevis

A

Extends digit 1

171
Q

Nerve of extensor hallucis brevis

A

Deep fibular nerve

172
Q

Origin of dorsal interosseous

A

Metatarsal bones

173
Q

Insertion of dorsal interosseous

A

Proximal phalanx of digits 2-4

174
Q

Actions of dorsal interosseous

A
  1. Flexes respective digits

2. Abducts digits 2-4

175
Q

Nerve of dorsal interosseous

A

Lateral plantar nerve

176
Q

Origin of plantar interosseous

A

3-5 metatarsals

177
Q

Insertion of plantar interosseous

A

Proximal phalanx of digits 3-5

178
Q

Actions of plantar interosseous

A
  1. Flexes respective digits

2. Adducts digits 3-5

179
Q

Nerve of plantar interosseous

A

Lateral plantar nerve

180
Q

Origin of abductor digiti quinti

181
Q

Insertion of abductor digiti quinti

A

Proximal phalanx of digit 5

182
Q

Actions of abductor digiti quinti

A
  1. Abducts digit 5

2. Supports lateral arch

183
Q

Nerve of abductor digiti quinti

A

Lateral plantar nerve

184
Q

Origin of abductor hallucis

185
Q

Insertion of abductor hallucis

A

Proximal phalanx digit 1

186
Q

Actions of abductor hallucis

A
  1. Abducts digit 1

2. Supports medial arch

187
Q

Nerve of abductor hallucis

A

Medial plantar nerve

188
Q

Origin of flexor digitorum brevis

189
Q

actions of flexor digitorum brevis

A
  1. Flexes digits 2-5

2. Supports medial and lateral arch

190
Q

Nerve of flexor digitorum brevis

A

Medial plantar nerve

191
Q

Origin of lumbricals

A

Tendons of flexor digitorum longus

192
Q

Insertion of lumbricals

A
  1. Tendons of extensor digitorum longus

2. Proximal phalanx digits 2-5

193
Q

Actions of lumbricals

A
  1. Flexes MP joints of digits 2-5

2. Extends IP joints of digits 2-5

194
Q

Nerve of 2-4 lumbricals

A

Lateral plantar nerve

195
Q

Origin of quadratic plantae

196
Q

Insertion of quadratus plantae

A

Tendons of flexor digitorum longus

197
Q

Actions of quadratus plantae

A

Assists Flexion of digits 2-5

198
Q

Nerve of quadratus plantae

A

Lateral plantar nerve

199
Q

Origin of adductor hallucis

A
  1. Oblique head: metatarsals 2-4 and tendon of fibularis longus
  2. Transverse head: lateral 4 MP joints
200
Q

Insertion of adductor hallucis

A

Proximal phalanx digit 1

201
Q

Actions of adductor hallucis

A
  1. Adducts digit 1
  2. Flexes digit 1
  3. Supports transverse arch
202
Q

Nerve of adductor hallucis

A

Lateral plantar nerve

203
Q

Origin of flexor digiti quinti brevis

A
  1. Cuboid
  2. 5th metatarsal
  3. Tendon of fibularis longus
204
Q

Insertion of flexor digiti quinti brevis

A

Proximal phalanx of digit 5

205
Q

action of flexor digiti quinti brevis

A

Flexes digit 5

206
Q

Nerve of flexor digiti quinti brevis

A

Lateral plantar nerve

207
Q

Origin of flexor hallucis brevis

A
  1. Cuboid

2. Cuneiforms

208
Q

Insertion of flexor hallucis brevis

A

Proximal phalanx digit 1

209
Q

Actions of flexor hallucis brevis

A
  1. Flexes digit 1

2. Supports medial arch

210
Q

Nerve of flexor hallucis brevis

A

Medial plantar nerve

211
Q

insertion of flexor digitorum brevis?

A

middle phalanges of digits 2-5

MUSCLES ETC!!! (6 decks)

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