Vastus Intermedius

Vastus Intermedius is one of four quadricep muscles, located deep in the thigh underneath the Rectus Femoris muscle.

Origin

  • Anterior and lateral surfaces of the shaft of the femur.

Insertion

  • Patella via the quadriceps tendon and then the tibial tuberosity via the patella tendon.

Actions

  • Knee extension.

Innervation

  • Femoral nerve.

Daily uses

  • Cycling.
  • Walking up stairs.

Example exercises

Example stretches