Musculus extensor digitorum brevis
The extensor digitorum brevis muscle is a muscle on the dorsal surface of the foot which helps extend digits 2 through 4.
- origin: superolateral surface of calcaneus
- insertion: lateral sides of the tendons of extensor digitorum longus of toes II to IV
- action: extension of toes II to IV
- arterial supply: dorsalis pedis artery
- innervation: deep peroneal nerve