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MUSCLE
REGION
ORIGIN
INSERTION
PRIMARY
ACTION
SECONDARY
ACTION
INNERVATION
deep fibular (peroneal) nerve
(L5, S1)
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2nd to 4th IP extension
2nd to 4th MTP extension
bases of 2nd to 4th middle phalanx via dorsal digital
expansion, bases of 2nd to 4th distal phalanx via dorsal digital
expansion,
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anterior part of dorsal surface of calcaneus
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Lower Limb
Extensor Digitorum Brevis
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Femoral nerve
(L2, L3, L4)
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Hip flexion
Knee extension
base of patella via quadriceps tendon, tibial tuberosity via patellar ligament/tendon
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anterior inferior iliac spine (AIIS), superior to acetabulum
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Lower Limb
Rectus Femoris
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lateral plantar nerve
(T1)
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2nd to 4th MTP abduction, 4rd to 5th MTP flexion
medial side of proximal phalanx of 2nd digit, lateral sides of proximal phalanges of 2nd to 4th digits, capsules of 2nd to 4th MTP joints
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adjacent sides of 1st to 5th metatarsals
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Lower Limb
Dorsal Interossei (all)
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Tibial nerve
(L5, S1, S3)
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Hip medial rotation
Hip extension, Knee flexion
posteromedial surface of medial condyle of tibia
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lateral facet of ischial tuberosity
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Lower Limb
Semi-membranosus
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tibial nerve
(S1, S2)
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Ankle plantarflexion
1st MTP flexion, 1st IP flexion
base of 1st distal phalanx
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distal 2/3 posterior fibula, adjacent interosseous membrane
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Lower Limb
Flexor Hallucis Longus
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Musculocutaneous nerve
(C5, C6)
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Forearm supination, Shoulder flexion
Elbow flexion
Radial tuberosity, Bicipital aponeurosis
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Corocoid process, Supraglenoid tubercle
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Upper Limb
Biceps Brachii
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anterior division of the obturator nerve
(L2, L3)
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Hip adduction, Medial tibial rotation
Knee flexion
medial surface of proximal shaft of tibia via pes anserine
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anterior body of pubis, ischiopubic ramus
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Lower Limb
Gracilis
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tibial nerve
(S1, S2)
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Knee flexion
Ankle plantarflexion
posterior calcaneus via tendocalcaneus
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medial and lateral femoral condyles, capsule of knee joint
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Lower Limb
Gastrocnemius
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superficial fibular (peroneal) nerve
(L5, S1)
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Ankle eversion
medial cuneiform, base of 1st metatarsal
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lateral condyle of tibia, lateral proximal 2/3 fibula
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Lower Limb
Fibularis (peroneus) Longus
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tibial nerve
(S1, S2)
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Ankle plantarflexion
posterior calcaneus via tendocalcaneus
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soleal line of tibia, posterior proximal 1/3 fibula
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Lower Limb
Soleus
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tibial nerve
(S1, S2)
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Knee flexion
Ankle plantarflexion
posterior calcaneus via tendocalcaneus
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medial and lateral femoral condyles, capsule of knee joint
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Lower Limb
Gastrocnemius
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tibial nerve
(L4, L5)
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Ankle plantarflexion
Ankle inversion
all tarsal bones except talus, base of 2nd to 4th metatarsal
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proximal 1/2 tibia distal to soleal line, medial proximal 2/3 fibula, adjacent interosseous membrane
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Lower Limb
Tibialis Posterior
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MUSCULOSKELORDLE
Torso and Neck Mode
Abductor Digiti Minimi
Lower Limb
Abductor Digiti Minimi
Upper Limb
Abductor Hallucis
Lower Limb
Abductor Pollicis Brevis
Upper Limb
Abductor Pollicis Longus
Upper Limb
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