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Rectus Femoris

The Rectus Femoris muscle is part of the Quadriceps muscle group. It is the only muscle of the group which crosses the hip joint and is a powerful knee extensor when the hip is extended, but is weak when the hip is flexed.


  • Anterior Inferior Iliac Spine (AIIS).


  • Top of the patella and the patella tendon to the tibial tuberosity.


  • Flexion of the hip.
  • Extension of the knee.


  • Femoral nerve.

Daily uses

  • Kicking a football.

Example strengthening exercises

Example stretches