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

Related injuries

Related muscles