Extensor Digitorum Longus – Foot

May 21, 2022 | Muscle

Origin

Upper two-thirds of anterior surface of fibula, interosseous membrane, lateral condyle of tibia.

Insertion

Along dorsal surface of proximal phalanges of four lateral toes, and then to bases of middle and distal phalanges.

Actions

Extends toes, dorsiflexes foot, everts foot.

Nerve

Deep peroneal nerve (L4, L5, S1).

Note

For some authors the lower lateral part of this muscle makes a separate insertion onto the dorsal surface of the fifth metatarsal and is called Peroneus Tertius.

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