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MSK Exams > Muscle of the Lower Limb > Flashcards

Muscle of the Lower Limb Flashcards

Information used from Netter's Atlas of Human Anatomy

1
Q

What are the main actions of the Abductor digiti minimi?

A

Abducts and flexes 5th digit

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2
Q

What are the main actions of the Abductor hallucis?

A

Abducts and flexes 1st digit

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3
Q

What are the main actions of the Adductor brevis?

A

Adducts things at high, weak hip flexor

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4
Q

What are the main actions of the Adductor hallucis?

A

Adducts 1st digit, maintains transverse arch of foot

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5
Q

What are the main actions of the Adductor longus?

A

Adducts thigh at hip

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6
Q

What are the main actions of the Adductor Magnus?

A

Adductor part: Adducts and flexes the thigh Hamstring part: Extends thigh

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7
Q

What are the main actions of the Articularis genus?

A

Pulls suprapatellar bursa superiorly with extension of knee

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8
Q

What are the main actions of the Biceps femoris?

A

Flexes and laterally rotates leg, extends thigh at hip

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9
Q

What are the main actions of the Dorsal Interossei (four muscles)?

A

Abducts 2nd04th digits of foot, flex metatasophalangeal joints, and extend phalangeal bones

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10
Q

What are the main actions of the Extensor digitorum brevis and extensor hallucis brevis?

A

Aids extensor digitorum lonhus in extending 0f 4 medial digits at metatarsophalangeal and interphalangeal joints

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11
Q

What are the main actions of the Extensor digitoum longus?

A

Extends lateral 4 digits and dorsiflexes for at ankle

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12
Q

What are the main actions of the Extensor hallucis longus?

A

Extends great toe, dorsiflexes foot ankle

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13
Q

What are the main actions of the Fibularis brevis?

A

Everts foot and weakly plantarfelxes foot at ankle

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14
Q

What are the main actions of the Fibularis longus?

A

Everts foot and weakly plantarflexes foot at ankle

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15
Q

What are the main actions of the Fibularis tertius?

A

Dorsiflexes foot at ankle and aids in eversion of foot

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16
Q

What are the main actions of the Flexes digitorum brevis?

A

Flexes 2nd-5th digits

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17
Q

What are the main actions of the Flexor digiti minimi brevis?

A

Flexes proximal phalanx of 5th digit

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18
Q

What are the main actions of the Flexor digitorum longus?

A

Flexes lateral 4 digits and plantarflexes foot at ankle and supports longitudinal arches of foot

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19
Q

What are the main actions of the Flexor hallucis brevis?

A

Flexes proximal phalanx of 1st digit

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20
Q

What are the main actions of the Flexor hallucis longus?

A

Flexes all joints of great toe, and weakly plantarflexes foot at ankle

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21
Q

What are the main actions of the Gastrocnemius?

A

Plantarflexes foot at ankle joint and assists in flexion of knee joint

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22
Q

What are the main actions of the Gluteus Maximus?

A

Extends flexed thigh, assists in lateral rotation, and abducts thigh

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23
Q

What are the main actions of the Gluteus medius?

A

Abducts and medially rotates thigh at hips and steadies pelvis on leg when opposite keg is raised

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24
Q

What are the main actions of the Gluteus minimus?

A

Abducts and medially rotates thigh at highs and steadies pelvis in leg when opposite leg is raised

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25
Q

What are the main actions of the Gracilis?

A

Adducts thigh, flexes and medially rotates leg

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26
Q

What are the main actions of the Iliacus (iliopsoas)?

A

Flexes thigh at hips and stabilizes hip joint and acts with poses major

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27
Q

What are the main actions of the Inferior gemellus?

A

Laterally rotates extended thigh and abducts flexed thigh

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28
Q

What are the main actions of the Lumbricals?

A

Flexes proximal phalangeal bones at metatarsophalangeal joint, extends phalangeal bones at proximal interphalangeal and distal interphalangeal joints

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29
Q

What are the main actions of the Obturator externus?

A

Laterally rotates thigh, stabilizes head of femur in acetabulum

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30
Q

What are the main actions of the Obturator internus?

A

Laterally rotates extended thigh, abducts flexed thigh at hips

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31
Q

What are the main actions of the Pectineus?

A

Adducts and flexes thigh at hip

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32
Q

What are the main actions of the Piriformis?

A

Laterally rotates extended thigh, abducts flexed thigh at hip

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33
Q

What are the main actions of the Plantar Interossei (three muscles)?

A

Adducts digits (3-5) and flexes metatarsophalangeal joint and extended phalangeal bones

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34
Q

What are the main actions of the Plantaris?

A

Weakly assists gastrocnemius

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35
Q

What are the main actions of the Popliteus?

A

Weakly flexes knee and unlocks it by rotating femur on fixed tibia

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36
Q

What are the main actions of the Psoas major (iliopsoas)?

A

Acting superiorly with iliacus, flexes hip Acting inferiorly , flexes vertebral column laterally Acting inferiorly with iliacus, flexes trunk Used to balance trunk is sitting position

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37
Q

What are the main actions of the Quadratus femoris?

A

Laterally rotates thigh at hip

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38
Q

What are the main actions of the Quadratus plantae?

A

Coorects for oblique pull of flexor digitorum longus tendon, thus assisting in flexion of digits of foot

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39
Q

What are the main actions of the Rectus femoris (quadriceps)?

A

Extends leg at knee joint and flexes thigh at hip joint

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40
Q

What are the main actions of the Sartorius?

A

Abducts, laterally rotates, and flexes thigh, and flexes knee joint

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41
Q

What are the main actions of the Semimembranous?

A

Flexes leg and extends thigh

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42
Q

What are the main actions of the Semitendinosus?

A

Flexes keg and extends thigh

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43
Q

What are the main actions of the Soleus?

A

Plantarflexes foot at ankle and stabilizes leg over foot

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44
Q

What are the main actions of the Superior gemellus?

A

Laterally rotates extended thigh and abducts flexed thigh

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45
Q

What are the main actions of the Tensor fasciae latae?

A

Abduvts, medially rotates and flexes thigh at hip and helps to keep knee extended

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46
Q

What are the main actions of the Tibialis anterior?

A

Dorsiflexes foot at ankle and inverts foot

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47
Q

What are the main actions of the Tibialis posterior?

A

Plantarflexes foot at ankle and inverts foot

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48
Q

What are the main actions of the Vastus intermedius (quadriceps)?

A

Extends leg at knee joints

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49
Q

What are the main actions of the Vastus lateralis (quadriceps)?

A

Extends leg at knee joints

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50
Q

What are the main actions of the Vastus medialis (quadriceps)?

A

Extends leg at knee joints

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51
Q

What is the blood supply of the Abductor digiti minimi?

A

Mediolateral plantar arter, plantar metatarsal and plantar digital arteries to 5th digit

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52
Q

What is the blood supply of the Abductor hallucis?

A

Medial plantar and 1st plantar metatarsal arteries

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53
Q

What is the blood supply of the Adductor brevis?

A

Profunda femoris, medial circumflex femoral arteries, and metatarsal arteries

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54
Q

What is the blood supply of the Adductor hallucis?

A

Medial and lateral plantar arteries and plantar arch, plantar metatarsal arteries

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55
Q

What is the blood supply of the Adductor longus?

A

Profunda femoris and medial circumflex femoral arteries

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56
Q

What is the blood supply of the Adductor Magnus?

A

Femoral, profunda femoris, and obturator arteries

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57
Q

What is the blood supply of the Articularis genus?

A

Femoral artery

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58
Q

What is the blood supply of the Biceps femoris?

A

Perforating branches of profunda femoris, inferior gluteal, and medial circumflex femoral arteries

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59
Q

What is the blood supply of the Dorsal Interossei (four muscles)?

A

Arcuate artery, dorsal and plantar metatarsal arteries

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60
Q

What is the blood supply of the Extensor digitorum brevis and Extensor hallucis brevis?

A

Dorsal pedis, lateral tarsal, arcuate and fibular arteries

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61
Q

What is the blood supply of the Extensor digitorum longus?

A

Anterior tibial artery

62
Q

What is the blood supply of the Extensor hallucis longus?

A

Anterior tibial artery

63
Q

What is the blood supply of the Fibularis brevis?

A

Anterior tibial and fibular arteries

64
Q

What is the blood supply of the Fibularis longus?

A

Anterior tibial and fibular arteries

65
Q

What is the blood supply of the Fibularis tertius?

A

Anterior tibial artery

66
Q

What is the blood supply of the Flexor digiti minimi brevis?

A

Lateral plantar artery, plantar digital artery to 5th digit, arcuate artery

67
Q

What is the blood supply of the Flexor digitorum brevis?

A

Medial and lateral plantar arteries and plantar arch plantar metatarsal and plantar digital arteries

68
Q

What is the blood supply of the Flexor digitorum longus?

A

Posterior tibial artery

69
Q

What is the blood supply of the Flexor hallucis brevis?

A

Medial plantar artery and 1st plantar metatarsal artery

70
Q

What is the blood supply of the Flexor hallucis longus?

A

Fibular artery

71
Q

What is the blood supply of the Gastrocnemius?

A

Popliteal and posterior tibial arteries

72
Q

What is the blood supply of the Gluteus Maximus?

A

Inferior gluteal arteries (mainly) and gluteal arteries (occasionally)

73
Q

What is the blood supply of the Gluteus medius?

A

Superior gluteal artery

74
Q

What is the blood supply of the Gluteus minimus?

A

Main trunk and deep branch of superior gluteal artery

75
Q

What is the blood supply of the Gracilis?

A

Profunda femoris artery, medial circumflex femoral artery

76
Q

What is the blood supply of the iliacus (iliopsoas)?

A

Iliac branches of iliolumbar artery

77
Q

What is the blood supply of the Inferior gemellus?

A

Medial circumflex femoral artery

78
Q

What is the blood supply of the Lumbricals?

A

Lateral plantar artery and plantar metatarsal arteries

79
Q

What is the blood supply of the Obturator externus?

A

Medial circumflex, femoral artery, obturator artery

80
Q

What is the blood supply of the Obturator internus?

A

Internal pudendal and obturator arteries

81
Q

What is the blood supply of the Pectineus?

A

Medial circumflex, femoral artery, obturator artery

82
Q

What is the blood supply of the Piriformis ?

A

Superior and inferior gluteal arteries, internal pudendal artery

83
Q

What is the blood supply of the Plantar Interossei (three muscles)?

A

Lateral plantar arter, and plantar arch, plantar metatarsal and plantar digital arteries

84
Q

What is the blood supply of the Planters?

A

Popliteal artery

85
Q

What is the blood supply of the Popliteus?

A

Inferior medial and lateral vehicular arteries

86
Q

What is the blood supply of the Psoas major (iliopsoas)?

A

Lumbar branches of iliolumbar artery

87
Q

What is the blood supply of the Quadratus femoris?

A

Medial Circumflex femoral artery

88
Q

What is the blood supply of the Quadratus plantar?

A

Medial and lateral plantar arteries and deep plantar arterial arch

89
Q

What is the blood supply of the Rectus femoris?

A

Profunda femoris and lateral circumflex femoral arteries

90
Q

What is the blood supply of the Sartorius?

A

Femoral artery

91
Q

What is the blood supply of the Semimbranosus?

A

Perforating branch of profunda femoris and medial circumflex femoral arteries

92
Q

What is the blood supply of the semitendinosis?

A

Perforating branch of profunda femoris and medial circumflex femoral arteries

93
Q

What is the blood supply of the Soleus?

A

Popliteal, posterior tibial and fibular arteries

94
Q

What is the blood supply of the Superior gemelus?

A

Inferior gluteal and internal pudendal arteries

95
Q

What is the blood supply of the Tensor fasciae later?

A

Ascending branch of lateral circumflex femoral artery

96
Q

What is the blood supply of the Tibialis anterior?

A

Anterior tibial artery

97
Q

What is the blood supply of the tibialis posterior?

A

Fibular artery

98
Q

What is the blood supply of the Vastus intermedius (quadriceps)?

A

Lateral Circumflex femoral and profunda femoris arteries

99
Q

What is the blood supply of the Vastus Lateralis (quadriceps)?

A

Lateral circumflex femoral and profunda femoris arteries

100
Q

What is the blood supply of the Vastus Medialis (quadriceps)?

A

Femoral and profunda femoris arteries

101
Q

What nerve innervates Abductor digit minimi?

A

Lateral plantar nerve

102
Q

What nerve innervates Abductor hallucis?

A

Lateral plantar nerve

103
Q

What nerve innervates Adductor Brevis?

A

Obturator nerve

104
Q

What nerve innervates Adductor Hallucis?

A

Deep branch of lateral plantar nerve

105
Q

What nerve innervates Adductor Longus?

A

Obturator nerve (anterior division)

106
Q

What nerve innervates Adductor Magnus?

A

Adductor part: obturator nerve Hamstring part: sciatic nerve (tibial divison)

107
Q

What nerve innervates Articularis genus?

A

Femoral nerve

108
Q

What nerve innervates Biceps femoris?

A

Long head: Sciatic nerve (tibial division) (L5-L2)

109
Q

What nerve innervates Dorsal Interossei (four muscles)?

A

Lateral plantar nerve

110
Q

What nerve innervates Extensor digitorum brevis and Extensor hallucis brevis?

A

Deep fibular nerve

111
Q

What nerve innervates Extensor digitorum longus?

A

Deep fibular nerve

112
Q

What nerve innervates Extensor hallucis longus?

A

Deep fibular nerve

113
Q

What nerve innervates Fibularis brevis?

A

Superficial fibular nerve

114
Q

What nerve innervates Fibularis longus?

A

Superficial fibular nerve

115
Q

What nerve innervates Fibularis tertius?

A

Deep Fibular nerve

116
Q

What nerve innervates Flexor digiti minimi brevis?

A

Superficial branch of lateral plantar nerve

117
Q

What nerve innervates Flexor digitorum brevis?

A

Medial plantar nerve

118
Q

What nerve innervates Flexor digitorum longus?

A

Tibial nerve

119
Q

What nerve innervates Flexor hallucis brevis?

A

Medial plantar nerve

120
Q

What nerve innervates Flexor hallucis longus?

A

Tibial nerve

121
Q

What nerve innervates Gastrocnemius?

A

Tibial nerve

122
Q

What nerve innervates Gluteus Maximus?

A

Inferior gluteal nerve

123
Q

What nerve innervates Gluteus medius?

A

Superior gluteal nerve

124
Q

What nerve innervates Gluteus minimus?

A

Superior gluteal nerve

125
Q

What nerve innervates Gracillis?

A

Obturator nerve

126
Q

What nerve innervates Iliacus (iliopsoas)?

A

Femoral Nerve

127
Q

What nerve innervates Inferior gemellus?

A

Nerve to Quadratus femoris muscle

128
Q

What nerve innervates Lumbricals?

A

Medial one: medial plantar nerve Lateral Three: lateral plantar nerve

129
Q

What nerve innervates Obturator externes?

A

Obturator nerve

130
Q

What nerve innervates Obturator internus?

A

Nerve to obturator interns muscle

131
Q

What nerve innervates Pectineus?

A

Femoral nerve and sometimes obturator nerve

132
Q

What nerve innervates Piriformis?

A

Ventral rami of L5, S1, S2

133
Q

What nerve innervates Plantar Interossei (three muscles)?

A

Lateral plantar nerve

134
Q

What nerve innervates Plantaris?

A

Tibial nerve

135
Q

What nerve innervates Popliteus?

A

Tibial nerve (L4-S1)

136
Q

What nerve innervates Psoas major (iliopsoas)?

A

Anterior rami of first three lumbar nerves

137
Q

What nerve innervates Quadratus femoris?

A

Nerve to Quadratus femoris muscle

138
Q

What nerve innervates Quadratus plantae?

A

Lateral plantar nerve

139
Q

What nerve innervates Rectus Femoris (quadriceps)?

A

Femoral nerve

140
Q

What nerve innervates Sartorius?

A

Femoral nerve

141
Q

What nerve innervates Semimembranosus?

A

Sciatic nerve (tibial division)

142
Q

What nerve innervates Semitendinosus?

A

Sciatic nerve (tibial division)

143
Q

What nerve innervates Soleus?

A

Tibial Nerve

144
Q

What nerve innervates Superior gemellus?

A

Nerve to obturator internus muscle

145
Q

What nerve innervates Tensor fasciae latae?

A

Superior gluteal nerve

146
Q

What nerve innervates Tibialis anterior?

A

Deep fibular nerve

147
Q

What nerve innervates Tibialis posterior?

A

Tibial nerve

148
Q

What nerve innervates Vastus intermedium (quadriceps)?

A

Femoral nerve

149
Q

What nerve innervates Vastus laterals (quadriceps)?

A

Femoral nerve

150
Q

What nerve innervates Vastus medialis (quadriceps)?

A

Femoral nerve

MSK Exams (13 decks)

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