Notes

Intrinsic Dorsal Foot Muscles

Extensor digitorum brevis:

  • Originates on the superolateral surface of the calcaneus
  • Inserts at the extensor hoods, which arise on the dorsal surfaces of the toes
  • Extends toes 2-4.

Extensor hallucis brevis:

  • Originates on the dorsal surface of the calcaneus
  • Inserts at the base of the proximal phalanx of the great toe
  • Extends the great toe.

Extension of toe 5 comes from extensor digitorum longus (which originates within the leg).