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Lower Leg Muscles

Muscle Description/locationAttachmentsActions
Popliteus Small muscle in back of knee Lateral condyle of femur, inserts proximal tibia Unlocks knee for flexion to occur
Plantaris Long thin muscle runs between gastrocnemius and soleus Femur,superior to lateral condyle, inserts at calcaneus via Achilles' tendon flexes knee and planter flexion of ankle
Soleus Flat muscle, lies deep to gastrocnemius. Medial border of tibia and head of fibula, inserts via Achilles' tendon Plantar flexion at ankle
Gastrocnemius Large superficial bulbous muscle back of lower leg Lateral and medial condyle of femur, insert to Achilles' tendon flexion at knee, planter flexion at ankle
Tibialis anterior Superficial muscle on front of lower leg lateral to tibia Tibia, lateral condyle and fibrous tissues, inserts to first metatarsal and (1st) medial cuneiform. Dorsi flexion at ankle, and inversion of foot
Tibialis posterior Deepest muscle in rear of the leg ( between FDL and FHL) Tibia, fibula and interosseous membrane, inserts to metatarsals (2-4) cuneiform and cuboid. plantar flexes foot at ankle, and inverts at intertarsal joints.
Peroneus (fibularis) longus Head and body of fibula and lateral condyle of tibia, inserts to first metatarsal and first cuneiform plantar flexes foot at ankle and everts foot at intertarsal joints.
Peroneus (fibularis) brevis Shorter muscle in lateral compartment of lower leg Body of fibula, inserts to base of fifth metatarsal plantar flexion, and eversion
Peroneus (fibularis) tertius Small, weak muscle in fibularis group Distal third of fibula and interosseous membrane, inserts to base of fifth metatarsal Dorsi flexes and everts foot
Extensor digitorum longus Long muscle, lateral to tibia and deep to TA Lateral condyle of tibia, anterior surface of fibula and interosseous membrane, inserts to middle and distal phalanges of toes (2-5) Dorsi flex foot, extends toes
Extensor hallucis longus deep to EDL and TA Anterior surface of fibula and interosseous membrane, inserts to big toe (distal phalanx) Dorsi flexes foot and extends proximal phalanx of big toe
Flexor digitorum longus Deep posterior lower leg Posterior surface of tibia, inserts to distal phalanges, (2-5) plantar flexion of foot and flexion of toes (2-5)
Flexor hallucis longus Deep posterior of lower leg Inferior 2 thirds of fibula, inserts to distal phalanx of big toe plantar flexion of foot and flexion of big toe
Peroneus(fibularis) longus Long muscle in lateral compartment of leg
Created by: sidneybetty
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