The muscle takes origin from the upper part of the intertrochanteric line and the anterior part of the greater trochanter, but the origin is separable from that of VL. The aponeurosis is separable from both VI and VL.
11 (42%)
VI type
The muscle takes origin together with VI, and the posterior border of TVI is fused with VI. The aponeurosis is separable from VL.
6 (23%)
VL type
The muscle takes origin together with VI, and the posterior border of TVI is fused with VI. The aponeurosis is separable from VL.
5 (19%)
Common type
The muscle takes origin from the VL, and the origin is inseparable. The aponeurosis is separable in both VL and VI.
4 (15%)
Two muscle bellies
The muscle is characterized by two muscle bellies and a converging tendon inserting into the patella.