Muscles of leg that move Foot

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Department
Physical Education and Sport
Course
PEDS100
Professor
Gail Amort- Larson
Semester
Fall

Description
Muscles of leg that move Foot -anything between the malleoli anteriorly dorsiflexes, anything between them posteriorly plantar flex -anything going laterally everts, anything going medially invert. Anterior Compartment : all muscles except tibialis anterior originate on fibula and interosseus membrane -Dorsiflexes ankle Tibialis anterior: prominent O: Lateral condyle and proximal shaft of tibia I: Base of first metatarsal bone and medial cuneiform A: Dorsiflexion at ankle, inversion of foot Extensor hallucis longus: palpable only on top of foot, not in shin area O: Anterior surface of fibula I: Superior surface, distal phalanx of great toe A: Extension at joints of great toe, dorsiflexes ankle Extensor digitorum longus: O: Anterior surface of fibula, Lateral condyle of tibia, I: Superior surfaces of phalanges, toes 2-5 A: Extension of toes 2-5, dorsiflexes ankle Peroneus tertius dorsi: (tertius means 3) Peroneus muscles are only evertors of foot A: flexes and everts the foot Lateral Compartment Peroneus (fibularis) longus: -tendon crosses deep in sole of foot to 1st metatarsal O: Fibula I: 1st metatarsal A: (strong evertor), plantar flexion Peroneus (fibularis) brevis: -assists the longus O: Fibula I: 5th metatarsal A: Everts foot, plantar flexion Posterior Compartment -Posterior Superficial group plantar flex foot at ankle Gastrocnemius: 2 heads(medial/lateral) attaching to femur. Lateral is a bit higher up on femur. (Big bulge in back of calf) O: Femoral condyles I: Calcaneus via calcaneal tendon A: Plantar flexion at ankle, flexion at knee Soleus: Deep to gastrocnemius. With gastrocnemius makes triceps surae O: Head and proximal shaft of fibula, adja
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