Soleus Muscle Gastrocnemius Muscle Adductor Muscle Semitendinosus Muscle Biceps Femoris Muscle Iliotibial Tract Gluteus Medius Muscle Gluteus Maximus Muscle Peroneus Longus Muscle Extensor Digitorum Longus Muscle Tibialis Anterior Muscle Pectineus Muscle Vastus Lateralis Muscle Vastus Medialis Muscle Rectus Femoris Muscle Sartorius Muscle Gracilis Muscle Adductor Longus Muscle
Extensor Digitorum Longus Muscle
ORIGIN AND INSERTION
EDL arises from upper medial surface of fibula, lateral condyle of tibia and interosseous membrane and inserts into the distal and middle phalanges of four toes. The muscle converts into tendons above the level of ankle and these tendons traverse the foot to reach the digits.
Extensor digitorum longus is innervated by the deep fibular nerve (L4, L5), a branch of common fibular nerve.
The blood supply of extensor digitorum longus is provided by the anterior tibial artery, a branch of the popliteal artery.
The functions of EDL include the extension of lateral four toes and dorsiflexion of ankle. It is tested by dorsiflexion of lateral four toes and if its functions are intact, tendons can observed and palpated.