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EXCI 253 > Muscles of Pelvis & Lower Extremity > Flashcards

Muscles of Pelvis & Lower Extremity Flashcards

1
Q

What muscles form the Iliopsoas

A

Psoas major, psoas minor and Iliacus

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2
Q

O of Psoas Major m.

A

Transverse process & Bodies of lumbar vertebrae

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3
Q

I of Psoas Major m.

A

Lesser trochanter of femur (fusing with iliacus)

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4
Q

Action of Psoas Major m.

A

Flexion & lateral rotation of thigh at hip jnt. & and flexion of trunk on hip

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5
Q

Innervation of Psoas Major m.

A

Lumbar spinal n.L2-L3

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6
Q

O of Psoas Minor m.

A

12th thoracic & 1st lumbar vertebrae

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7
Q

I of Psoas Minor m.

A

Iliopectineal line or fused with psoas major

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8
Q

Action of Psoas Minor m.

A

Flexion of pelvis on abdomen

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9
Q

Innervation of Psoas Minor m.

A

Lumbar plexus

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10
Q

O of Iliacus m.

A

Iliac fossa & sacrum

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11
Q

I of Iliacus m.

A

Tendon of psoas major into lesser trochanter of femur

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12
Q

Action of Iliacus m.

A

Flexion & lateral rotation of thigh at hip jnt.

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13
Q

Innervation of Iliacus m.

A

Femoral n.

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14
Q

O of Gluteus maximus m.

A

Iliac crest , posterior gluteal line, sacrum & coccyx

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15
Q

I of Gluteus maximus m.

A

Iliotibial tract of tensor fascia latae & gluteal tuberosity of femur

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16
Q

Action of Gluteus Maximus m.

A

Extension & lateral rotation of thigh

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17
Q

Innervation of Gluteus Maximus m.

A

Inferior gluteal n.

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18
Q

O of Gluteus Medius m.

A

Ilium between anterior & posterior gluteal lines

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19
Q

I of Gluteus Medius m.

A

Greater trochanter of femur

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20
Q

Action of Gluteus Medius m.

A

Abduction & medial rotation of thigh

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21
Q

Innervation of Gluteus Medius m.

A

Superior gluteal n.

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22
Q

O of Gluteus Minimus m.

A

Ilium between anterior & inferior gluteal lines

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23
Q

I of Gluteus Minimus m.

A

Greater trochanter of femur

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24
Q

Action of Gluteus Minimus m.

A

Abduction & Medial rotation of thigh

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25
Q

Innervation of Gluteus Minimus m.

A

Superior gluteal n.

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26
Q

O of Tensor fascia latae m.

A

Anterior superior iliac spine & iliac crest

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27
Q

I of Tensor Fascia Latae m.

A

Iliotibial tract which attaches to lateral tibia

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28
Q

Action of Tensor Fascia Latae m.

A

Flexion & abduction of thigh at hip jnt.

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29
Q

Innervation of Tensor Fascia Latae m.

A

Superior gluteal n.

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30
Q

O of Piriformis m.

A

Anterior surface of sacrum

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31
Q

I of Piriformis m.

A

Greater trochanter of femur

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32
Q

Action of Piriformis m.

A

Lateral rotation & abduction of thigh at hip jnt.

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33
Q

Innervation of Piriformis m.

A

Sacral plexus

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34
Q

O of Superior Gemellus m.

A

Ischial spine

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35
Q

I of Superior Gemellus m.

A

Greater trochanter of femur

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36
Q

Action of Superior Gemellus m.

A

Lateral rotation & abduction of thigh at hip jnt.

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37
Q

Innervation of Superior Gemellus m.

A

Lumbosacral plexus

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38
Q

O of Obturator Internus m.

A

Inner surface of obturator foramen, pubis & Ischium

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39
Q

I of Obturator Internus m.

A

Greater trochanter of femur

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40
Q

Action of Obturator Internus m.

A

Lateral rotation & abduction of thigh at hip jnt.

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41
Q

Innervation of Obturator Internus m.

A

Lumbosacral plexus.

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42
Q

O of Inferior Gemellus m.

A

Ischial tuberosity

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43
Q

I of Inferior Gemellus m.

A

Greater trochanter of femur

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44
Q

Action of Inferior Gemellus m.

A

Lateral rotation & abduction of thigh at hip jnt.

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45
Q

Innervation of Inferior Gemellus m.

A

Lumbosacral plexus

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46
Q

O of Quadratus Femoris m.

A

Ischial tuberosity

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47
Q

I of Quadratus Femoris m.

A

Quadrate tubercule of femur

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48
Q

Action of Quadratus Femoris m.

A

Lateral rotation & stabilization of thigh at hip jnt.

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49
Q

Innervation of Quadratus Femoris m.

A

Lumbosacral plexus

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50
Q

O of Obturator Externus m.

A

Outer surface of obturator foramen & membrane

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51
Q

I of Obturator Externus m.

A

Trochanteric fossa of femur

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52
Q

Action of Obturator Externus m.

A

Lateral rotation & abduction of thigh at hip jnt.

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53
Q

Innervation of Obturator Externus m.

A

Obturator n.

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54
Q

What is the role of the lateral rotators

A

Steady the femoral head in acetabulum, therefore, stabilizing the hip joint

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55
Q

O of Sartorius m.

A

Anterior superior iliac spine

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56
Q

I of Sartorius m.

A

Proximal, medial surface of shaft of tibia

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57
Q

Action of Sartorius m.

A

Flexion, abduction & lateral rotation of thigh and flexion of leg at hip jnt.

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58
Q

Innervation of Sartorius m.

A

Femoral n.

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59
Q

O of Rectus Femoris m.

A

Anterior inferior iliac spine

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60
Q

I of Rectus Femoris m.

A

Patella via quadriceps tendon & then tibial tuberosity via patellar ligament

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61
Q

Action of Rectus Femoris m.

A

Extension of leg at knee jnt. & flexion of thigh at hip jnt.

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62
Q

Innervation of Rectus Femoris m.

A

Femoral n.

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63
Q

O of Vastus Lateralis m.

A

Greater trochanter and lateral margin of linea aspera of femur

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64
Q

I of Vastus Lateralis m.

A

Patella via quadriceps tendon & then tibial tuberosity via patellar ligament

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65
Q

Action of Vastus Lateralis m.

A

Extension of leg at knee joint

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66
Q

Innervation of Vastus Lateralis m.

A

Femoral n.

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67
Q

Action of Vastus Medialis m.

A

Extension of leg at knee jnt.

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68
Q

O of Vastus Medialis m.

A

Medial margin of linea aspera of femur

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69
Q

I of Vastus Medialis m.

A

Patella via quadriceps tendon & then tibial tuberosity via patellar ligament

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70
Q

Innervation of Vastus Medialis m.

A

Femoral n.

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71
Q

O of Vastus Intermedius m.

A

Anterior and lateral surfaces of shaft of femur

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72
Q

I of Vastus Intermedius m.

A

Patella via quadriceps tendon & then tibial tuberosity via patellar ligament

73
Q

Action of Vastus Intermedius m.

A

Extension of leg at knee jnt.

74
Q

Innervation of Vastus Intermedius m.

A

Femoral n.

75
Q

O of Pectineus m.

A

Superior ramus of pubis

76
Q

I of Pectineus m.

A

Pectineal line of femur, between lesser trochanter and linea aspera

77
Q

Action of Pectineus m.

A

Flexion & adduction of thigh at hip jnt.

78
Q

Innervation of Pectineus m.

A

Femoral n.

79
Q

O of Adductor Brevis m.

A

Inferior ramus of pubis

80
Q

I of Adductor Brevis m.

A

Superior half of linea aspera of femur

81
Q

Action of Adductor Brevis m.

A

Adduction & flexion at thigh at hip jnt., rotates thigh

82
Q

Innervation of Adductor Brevis m.

A

Obturator n.

83
Q

O of Adductor Longus m.

A

Pubic crest & symphysis pubis

84
Q

I of Adductor Longus m.

A

Linea aspera femur

85
Q

Action of Adductor Longus m.

A

Adduction & flexion at thigh at hip jnt., rotates thigh

86
Q

Innervation of Adductor Longus

A

Obturator n.

87
Q

O of Adductor magnus m.

A

Inferior ramus of pubis & ischium to ischial tuberosity

88
Q

I of Adductor magnus m.

A

Linea aspera of femur

89
Q

Action of Adductor magnus m.

A

Adduction of thigh at hip jnt.-anterior fibers flex thigh & posterior fibers extend thigh, rotates thigh

90
Q

Innervation of Adductor magnus m.

A

Obturator & sciatic n.

91
Q

The Adductor minimus m. is part of which muscle

A

Adductor magnus m.

92
Q

O of Adductor minimus m.

A

Inferior ramus of pubis

93
Q

I of Adductor minimus m.

A

Medial lip of linea aspera of femur

94
Q

Action of Adductor minimus m.

A

Adduction and lateral rotation of thigh at hip jnt.

95
Q

Innervation of Adductor minimus m.

A

Obturator n.

96
Q

O of Gracilis m.

A

Body & inferior ramus of pubis

97
Q

I of Gracilis m.

A

Proximal, medial surface of shaft of tibia

98
Q

Action of Gracilis m.

A

Adduction of thigh at hip jnt., flexion and medial rotation of leg at knee jnt.

99
Q

Innervation of Gracilis m.

A

Obturator n.

100
Q

Describe what is unique about adductors

A

They cross the thigh from anterior origin to posterior insertion. & They laterally rotate the hip jnt. when the foot is off the ground, but medially rotate when the hip jnt. when the foot is on the ground.

101
Q

O of long head of Biceps femoris m.

A

Ischial tuberosity

102
Q

O of short head of Biceps femoris m.

A

Linea aspera of femur

103
Q

I of Biceps femoris m.

A

Head of fibula and lateral condyle of tibia

104
Q

Action of Biceps femoris m.

A

Flexion of leg at knee jnt. & extension of thigh at hip jnt.

105
Q

Innervation of Biceps femoris m.

A

Sciatic n. (tibial & common fibular n.)

106
Q

O of Semi-tendinosus m.

A

Ischial tuberosity

107
Q

I of Semi-tendinosus m.

A

Proximal, medial surface of shaft of tibia

108
Q

Action of Semi-tendinosus m.

A

Flexion of leg at knee jnt., & extension of thigh at hip jnt.

109
Q

Innervation of Semi-tendinosus m.

A

Sciatic n. (tibial n.)

110
Q

O of Semi-membranosus m.

A

Ischial tuberosity

111
Q

I of Semi-membranosus m.

A

Medial condyle of tibia

112
Q

Action of Semi-membranosus m.

A

Flexion of leg at knee jnt. & extension of thigh at hip jnt.

113
Q

Innervation of Semi-membranosus m.

A

Sciatic n. (tibial n.)

114
Q

O of Tibialis anterior m.

A

Lateral condyle and shaft of tibia & interosseus membrane

115
Q

I of Tibialis anterior m.

A

1st metatarsal & 1st cuneiform

116
Q

Action of Tibialis anterior m.

A

Dorsiflexion & inversion of foot

117
Q

Innervation of Tibialis anterior m.

A

Deep fibular (peroneal) n.

118
Q

O of Extensor hallus longus m.

A

Anterior surface of fibula & interosseous membrane

119
Q

I of Extensor hallucis longus m.

A

Distal phalanx 1st toe

120
Q

Action of Extensor hallus longus m.

A

Dorsiflexion of foot & extension of 1st toe

121
Q

O of Extensor digitorum longus m.

A

Lateral condyle of tibia, anterior surface of fibula & interosseous membrane

122
Q

I of Extensor digitorum longus m.

A

Middle & distal phalanges of toes 2-5

123
Q

Action of Extensor digitorum longus m.

A

Dorsiflexion of foot & extension of digits 2-5

124
Q

Innervation of Extensor digitorum longus m.

A

Deep fibular (peroneal) n.

125
Q

O of Fibularis (peroneus) tertius m.

A

Distal 1/3 of fibula & interosseous membrane

126
Q

I of Fibularis (peroneus) tertius m.

A

Base of 5th metatarsal

127
Q

Action of Fibularis (peroneus) tertius m.

A

Dorsiflexion & eversion of foot

128
Q

Innervation of Fibularis (peroneus) tertius m.

A

Deep fibular (peroneal) n.

129
Q

O of Gastrocnemius m. (Lateral and medial heads)

A

Lateral and medial condyles of femur

130
Q

I of Gastrocnemius m.

A

Calcaneus by way of calcaneal (Achilles) tendon

131
Q

Action of Gastrocnemius m.

A

Plantarflexion of foot ankle jnt. & flexion of leg at knee jnt.

132
Q

Innervation of Gastrocnemius m.

133
Q

O of Soleus m.

A

Head of fibula & soleal line of tibia

134
Q

I of Soleus m.

A

Calcaneus by way of calcaneal (Achilles) tendon

135
Q

Action of Soleus m.

A

Plantarflexion of foot at ankle jnt.

136
Q

Innervation of Soleus m.

137
Q

O of Plantaris m.

A

Lateral supracondylar ridge of femur

138
Q

I of Plantaris m.

A

Calcaneus by way of calcaneal (Achilles) tendon

139
Q

Action of Plantaris m.

A

Plantarflexion of foot at ankle jnt. & flexion of leg at knee jnt.

140
Q

Innervation of Plantaris m.

141
Q

O of Popliteus m.

A

Lateral condyle of femur

142
Q

I of Popliteus m.

A

Proximal tibia-above popliteal line

143
Q

Action of Popliteus m.

A

Flexion & medial rotation of the leg at knee jnt.; unlocking of extended knee

144
Q

Innervation of Popliteus m.

145
Q

O of Tibialis posterior m.

A

Posterior tibia, posterior fibula & interosseous membrane

146
Q

I of Tibialis posterior m.

A

Navicular, cuboid, 3 cuneiforms & base of metatarsals 2-4

147
Q

Action of Tibialis posterior m.

A

Plantarflexion & inversion of foot at ankle jnt.

148
Q

Innervation of Tibialis posterior m.

149
Q

O of Flexor digitorum longus m.

A

Posterior surface of tibia

150
Q

I of Flexor digitorum longus m.

A

Distal phalanges of toes 2-5

151
Q

Action of Flexor digitorum longus m.

A

Flexion of digits 2-5 & plantarflexion of foot at ankle jnt.

152
Q

Innervation of Flexor digitorum longus m.

153
Q

O of Flexor hallucis longus m.

A

Distal 2/3 of fibula

154
Q

I of Flexor hallucis longus m.

A

Distal phalanx of 1st toe

155
Q

Action of Flexor hallucis longus m.

A

Flexion of 1st toe & plantarflexion of foot

156
Q

Innervation of Flexor hallucis longus m.

157
Q

O of Fibularis longus m. (Lateral & medial heads)

A

Head & proximal 2/3 of fibula

158
Q

I of Fibularis longus m.

A

1st metatarsal & 1st cuneiform

159
Q

Action of Fibularis longus m.

A

Plantarflexion & eversion of foot at ankle jnt.

160
Q

Innervation of Fibularis longus m.

A

Superficial fibular (peroneal) n.

161
Q

O of Fibularis brevis m.

A

Distal 2/3 shaft of fibula

162
Q

I of Fibularis brevis m.

A

Base of 5th metatarsal

163
Q

Action of Fibularis brevis m.

A

Plantarflexion & eversion of foot at ankle jnt.

164
Q

Innervation of Fibularis brevis m.

A

Superficial fibular (peroneal) n.

165
Q

Innervation of Extensor digitorum brevis m.

A

Deep peroneal n.

166
Q

Innervation of Extensor hallucis brevis m.

A

Deep peroneal n.

167
Q

Innervation of Flexor digitorum brevis m.

A

Medial plantar n.

168
Q

Innervation of Abductor hallucis m.

A

Medial plantar n.

169
Q

Innervation of Abductor digiti minimi m.

A

Lateral plantar n.

170
Q

Action of Quadratus plantae m.

A

Flexion of toes 2-5

171
Q

Innervation of Quadratus plantae m.

A

Lateral plantar n.

172
Q

Action of Lumbricals m.

A

Flexion of proximal phalanges, extension of middle & distal phalanges of toes 2-5

173
Q

Innervation of Lumbricals m.

A

Medial & lateral plantar n.

174
Q

Innervation of Flexor hallucis brevis m.

A

Medial plantar n.

175
Q

Innervation of Adductor hallucis (Oblique & transverse head) m.

A

Lateral plantar n.

176
Q

Innervation of Flexor digiti minimi brevis m.

A

Lateral plantar n.

177
Q

Action of Dorsal interossei (4) m.

A

Abduction of toes

178
Q

Innervation of Dorsal interossei (4) m.

A

Lateral plantar n.

179
Q

Action of Plantar interossei (3) m.

A

Adduction of toes

EXCI 253 (14 decks)

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