Flexor Digitorum Longus Muscle

By: Tim Taylor

Last Updated: Jun 26, 2015

The flexor digitorum longus muscle extends from the back surface of the tibia to the foot. Its tendon passes along the plantar surface of the foot. There, it divides into four parts that attach to the terminal bones of the four small toes. It assists in plantar flexion of the foot, flexion of the four small toes, and inversion of the foot.