- The rectus femoris of the quadriceps femoris group attaches from the AIIS to the patella and then onto the tibial tuberosity via the patella ligament.
- The rectus femoris flexes the thigh at the hip joint.
- It anteriorly tilts the pelvis at the hip joint.
- It extends the leg (and/or thigh) at the knee joint.
NOTE: The rectus femoris is the only one of the four quadriceps femoris muscles that crosses the hip joint.