![]() Vastus lateralis inserts onto the quadriceps femoris tendon and the lateral aspect of the patella.The muscle originates along the femur, starting from the superior intertrochanteric line, before moving laterally to the lateral gluteal tuberosity and down the lateral aspect of the linea aspera.As its name suggests, it is the most lateral muscle in the vastus group and lies on the outside of the thigh. Vastus lateralis is the largest of the quadriceps femoris muscle group. Vastus intermedius inserts onto the quadriceps femoris tendon, as well as the lateral border of the patella and the lateral condyle of the tibia.The muscle originates from the upper two-thirds of the anterolateral surface of the femur. ![]() It lies behind rectus femoris and medial to the vastus lateralis muscle. Vastus intermedius gets its name as it is the middle of the three vastus muscles. It inserts onto the medial aspect of the quadriceps tendon and the medial border of the patella.It starts on the intertrochanteric line, descends posteroinferiorly along the pectinate line and along the linea aspera, down to the medial supracondylar line.The vastus medialis has a long origin along the femur.It sits lateral to sartorius and medial to rectus femoris. Vastus medialis is the most medial muscle in the quadriceps femoris group, hence its name. The patellar tendon inserts onto the base of the patella.The rectus femoris tendon converges with the quadriceps femoris tendon to form the patellar tendon.The two heads converge to form a common muscle. ![]()
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