Sunday, October 2, 2011

Vastus Intermedius muscle

Located in the center of the thigh under the rectus femoris, the vastus intermedius is one of the four muscles that form the quadriceps, originating from the front and lateral surfaces of the body of the femur in its upper two-thirds, and the medial and lateral intermuscular septa. The vastus intermedius fibers end in a superficial aponeurosis that forms the deep part of the quadriceps femoris tendon, inserted under the patella and onto the tibial tuberosity. Its function is to extend the leg. Like the rest of quadriceps muscles, the vastus intermedius is innervated by the femoral nerve and is supplied by the femoral artery.