extensor digitorum longus muscle


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ex·ten·sor di·gi·to·rum lon·gus mus·cle

(eks-ten'sŏr dij-i-tō'rŭm long'gus mŭs'ĕl)
Origin, lateral condyle of tibia, upper two thirds of anterior margin of fibula; insertion, by four tendons to the dorsal surfaces of the bases of the proximal, middle, and distal phalanges of the second to fifth toes; action, extends the four lateral toes; nerve supply, deep branch of peroneal.
Synonym(s): musculus extensor digitorum longus [TA] , long extensor muscle of toes.

extensor digitorum longus muscle

Foot muscle. Origin: lateral condyle of tibia, upper three-fourths of fibula. Insertion: extensor tendons of toes 2-5. Nerve: deep peroneal (L5-S1). Action: extends toes, dorsiflexes foot.
See: leg for illus. (Muscles of the leg)
See also: muscle
References in periodicals archive ?
On the other hand, sarcoplasmic reticulum is much more extensive in the fast muscles which might be the reason that a similar level of damage to the soleus muscle did not have the same effect on extensor digitorum longus muscle, because of its greater functional reserve.
The DF nerve also innervates the extensor hallucis longus and extensor digitorum longus muscles, which primarily extend the toes and dorsiflex the foot, predominantly in non-weight-bearing positions.
The mass was identified at the midtibial level, interposed between the tibialis anterior and extensor digitorum longus muscles.

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