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13 terms

Actions of lower leg muscles

STUDY
PLAY
plantar flexes and everts foot
peroneus brevis
flexes and rotates leg medially to unlock knee from full extension when flexion begins
popliteus
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
gastrocnemius
assists in knee flexion and plantar flexion of foot
plantaris
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
soleus