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Foot and Toe Muscles
11.3--Muscle Groups
Term | Definition |
---|---|
Tibialis Anterior | Origin: Lateral condyle and body of tibia and interosseus membrane Insertion: 1st Metatarsal and 1 cuneiform (medial) Action: Dorsiflexion at ankle and inverts foot (towards midline) |
Extensor Hallucis Longus | Origin: Anterior surface of fibula Insertion: Distal phalanx of great toe Action: Dorsiflexion and extension of proximal phalanx of hallux |
Extensor Digitorum Longus | Origin: Tibia; anterior surface of fibula Insertion: middle and distal phalanges of 2-5 Action: Dorsiflexion, extension of toes |
Fibularis Tertius | Origin: Distal third of fibula Insertion: Base of fifth metatarsal Action: Dorsiflexion; eversion of foot |
Fibularis Longus | Origin: Head and body of fibula Insertion: 1st metatarsal and cuneiform Action: Plantar flexes foot at ankle and everts foot |
Fibularis Brevis | Origin: Body of fibula Insertion: Base of fifth metatarsal Action: Plantar flexes and everts foot at metatarsal joints |
Gastrocnemius | Origin: Lateral and medial condyles of femur and knee Insertion: Calcaneus Action: Plantar flexion, leg flexion |
Soleus | Origin: Head of fibula and medial border of tibia Insertion: Calcaneus Action: Plantar flexion |
Plantaris | Origin: Femur superior to lateral condyle Insertion: Calcaneus Action: Plantar flexion and leg flexion |
Popliteus | Origin: Lateral condyle of femur Insertion: Proximal tibia Action: Flexion of leg and medial roation of tibia |
Tibialis Posterior | Origin: Tibia, fibula Insertion: 2,3,4 metatarsals, 3 cuneiforms and cuboid Action: Plantar flexion; inversion of foot |
Flexor Digitorum longus | Origin: Posterior of tibia Insertion: Distal phalanges 2-5 Action: Plantar flexion. Flexion of phalanges |
Flexor Hallucis Longus | Origin: Inferior 2/3ds of fibula Insertion: Hallux Action: Plantar flexion and flexion of hallux |