Flexor Hallucis Longus

Origin Inferior 2/3 of posterior surface of fibula, lower part of interosseous membrane
Insertion Plantar surface of base of distal phalanx of great toe
Action Flexes great toe, helps to supinate ankle, and is a very weak plantar flexor of ankle
Innervation Tibial nerve (S2, S3) (S2, S3)
Arterial Supply Muscular branch of peroneal and posterior tibial artery

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Muscle Atlas of the Extremities