Extensor digitorum longus
Lower legs
Deep muscle — it lies under other muscles. X-ray makes the muscles over it see-through.
- Origin
- Lateral condyle of the tibia, upper front of the fibula and the interosseous membrane
- Insertion
- Middle and distal phalanges of toes 2 to 5
- Action
- Extends the four small toes; assists dorsiflexion
- Nerve supply
- Deep fibular nerve (L5–S1)
A muscle on the outer front of the shin. Its four tendons fan out over the top of the foot to the small toes.
Extensor digitorum longus anatomy page →