Flexor Digitorum Longus

Origin Posterior surface of tibia distal to popliteal line
Insertion Splits into four slips after passing through medial intermuscular septum of plantar surface of foot; these slips then insert on plantar surface of bases of 2nd - 5th distal phalanges
Action Flexes toes 2 - 5; also helps in plantar flexion of ankle
Innervation Tibial nerve (S2, S3) (S2, S3)
Arterial Supply Muscular branch of posterior tibial artery

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Muscle Atlas of the Extremities