Origin

Lateral Condyle of tibia and superior ¾ of interosseous membrane

Insertion

Middle and Distal phalanges of lateral four digits

Action(s)

Extension of toes and ankle

Nerve Supply

Peroneal nerve

Arterial Supply

Anterior tibial artery

Physical Exam

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Clinical Importance

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Disease States

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Discussion

This muscle varies considerably in the modes of origin and the arrangement of its various tendons.

The tendons to the second and fifth toes may be found doubled, or extra slips are given off from one or more tendons to their corresponding metatarsal bones, or to the short extensor, or to one of the interosseous muscles.

A slip to the great toe from the innermost tendon has been found.

Figures

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From Wikipedia:
Extensor digitorum longus

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