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Extensor Digitorum − Foot

Extensor Digitorum Brevis


Origin :

  • Anterior and Lateral surfaces of calcaneus, latreal talocalcaneal ligament, inferior extensor retinaculum

Insertion :

  • Into base of proximal phalanx of great toe;
  • into lateral sides of tendons of extensor digitorum longus of second, third and fourth toes.

Innervation :

  • Deep peroneal nerve (L5, S1)

Arterial Supply :

  • Anterior tibial artery

Depth :

  • Superficial


Action :

  • Extends four toes