NCIt definition : The portion of the quadriceps femoris muscle group that extends medially from the
intertrochanteric line of the femur to the medial aspects of the quadriceps femoris
tendon and patella.;
Alternative definition : CDISC: A muscle in the quadriceps femoris muscle group medial to the vastus intermedius;
primary function is the extension of the femorotibial joint.;