Flexor digitorum longus

  • The flexor digitorum longus (also flexor digitorum longus muscle, latin: musculus flexor digitorum longus) is a deep muscle of the posterior group of the lower leg.

    Origin

    The flexor digitorum longus originates from the posterior surface of the tibia, below the soleal line.

    Insertion

    The flexor digitorum longus inserts at the base of the medial and distal phalanges of the second, third, fourth and fifth digits of the foot.

    Action

    The functions of the flexor digitorum longus are flexion of the foot and flexion of the proximal, medial and distal phalanges of the four toes (II - V).

    Innervation

    The flexor digitorum longus is innervated by the tibial nerve.