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Attachments: Originates from the heel and attaches to the toes.

Extensor Digitorum Brevis: The extensor digitorum brevis muscle is a deep-lying intrinsic muscle lying beneath the tendon of the extensor digitorum longus.Attachments: Originates from the tibia and transitions into a tendon, passes into the foot, splits into four, and attaches to the toes.Extensor Digitorum Longus: The extensor digitorum longus is a deep-lying extrinsic muscle that lies runs down the length of the tibia.Movement of the foot and toes requires the action of many muscles.Īlthough many extrinsic muscles attach within the dorsal compartment, there are only three intrinsic muscles which act on the foot and two extrinsic muscles which act on the foot rather than the ankle.