Quadratus femoris

  • The quadratus femoris (also quadratus femoris muscle, latin: musculus quadratus femoris) is a flat, quadrilateral muscle of the posterior group of the pelvic girdle.

    The quadratus femoris originates from the ischial tuberosity. The quadratus femoris passes laterally and inserts onto the intertrochanteric crest of the femur.

    The major function of the quadratus femoris is the external rotation of the femur.