Flexor hallucis longus muscle

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Description:

Origin:
Posterior surface of the distal two-thirds of the fibula, the adjacent interosseous membrane, and the fascia of the tibialis posterior

Insertion:
Plantar surface of the base of terminal phalanx of the great toe

Actions:
Flexes the big toe and plantar flexes the ankle

Nerve supply:
Tibial nerve

Blood supply:
Branches of the posterior tibial and (peroneal) fibular arteries