Extensor digitorum longus
Musculus extensor digitorum longus
MuscularSuperficial musclesLegLeft and right
View left in 3D View right in 3D
- What it is
- Feather-shaped (unipennate) muscle lateral to tibialis anterior, arising from the lateral tibial condyle, the upper three-quarters of the anterior fibula and the interosseous membrane.
- Function
- Extends the lateral four toes and dorsiflexes the ankle.
- Size
- Belly about 25 cm long, 2-3 cm wide.
- Clinical note
- Its lowest part often forms a separate slip, fibularis tertius, inserting on the fifth metatarsal.