Extensor Digitorum Longus

Origin Lateral condyle of fibula, upper 2/3 - 3/4 of medial fibular shaft surface, upper part of interosseous membrane, fascia cruris, and anterior intermuscular septum
Insertion Splits into 4 tendon slips after inferior extensor retinaculum, each of which insert on dorsum of middle and distal phalanges as part of extensor expansion complex
Action Extend toes 2 - 5 and dorsiflexes ankle
Innervation Deep peroneal nerve (L4, L5, S1) (L4, L5, S1)
Arterial Supply Anterior tibial artery

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Muscle Atlas of the Extremities