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13 terms

Actions of lower leg muscles

plantar flexes and everts foot
peroneus brevis
flexes and rotates leg medially to unlock knee from full extension when flexion begins
extends great toe; dorsiflexes foot
extensor hallucis longus
plantar flexes and everts foot; helps keep foot flat on ground
peroneus longus
plantar flexes foot when knee is extended; since it also crosses the knee joint, it can flex knee when foot is dorsiflexed
assists in knee flexion and plantar flexion of foot
prime mover of dorsiflexion; assists in supporting medial longitudinal arch of foot
tibialis anterior
dorsiflexes foot; prime mover of toe extension
extensor digitorum
dorsiflexes and everts foot
peroneus tertius
plantar flexes and inverts foot; flexes toes; helps foot grip ground
flexor digitorum
plantar flexes and inverts foot; flexes great toe at all joints; push off muscle during walking
flexor hallucis longus
prime mover of foot inversion; plantar flexes ankle; stabilizes medial longitudinal arch
tibialis posterior
plantar flexes ankle; important locomotor and postural muscle during walking, running, and dancing