extensor digitorum longus muscle


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