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Muscles of the Lower Extremity / Extensor Digitorum Longus
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| 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) |
Arterial
Supply |
Anterior tibial artery |
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