Quadratus plantae

  • The quadratus plantae (also quadratus plantae muscle, flexor accessorius, latin: musculus quadratus plantae) is a muscle of the sole of the foot.

    The quadratus plantae originates from the calcaneal tuberosity and inserts into the tendon of the flexor digitorum longus.

    The main function of the quadratus plantae is to aid in flexing the second to fifth toes.