Quadriceps Muscle Physiology Summary

Your Quadriceps are made up of four muscles, hence the name Quads.Skeletal muscle systems for a muscular man both front and back pose, with the Quadricep Muscles labeled (Rectus Femoris, Vastus Intermedius, Vastus Medialis, and Vastus Lateralis).

  1. Your Rectus Femoris occupies the middle of the thigh, covering most of the other three quadriceps muscles. It originates on the ilium.
  2. The Vastus Intermedius is between Vastus Lateralis and Vastus Medialis.
  3. The Vastus Medialis is on the inner part of your thigh, the medial side of the femur.
  4. The Vastus Lateralis is on the outer side of your thigh, the lateral side of the femur.

Your Quadriceps stretch the front of your thigh, connecting your hip joint and your knee joint.

All four parts of the quadriceps attach to via the quadriceps tendon to your knee cap (patella). Your Quadriceps primary function is to flex the hip and extend the knee.  Our Quadriceps are very important in walking, running, jumping, climbing, and pedaling.

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