(Quadriceps Femoris) Vastus Intermedius

knee-model-patella-labeledMuscle Origin

Anterior surface of femur to tibial tuberosity.

Attaches to the anterior and the lateral surface of the proximal femur, the lower ½ of the linea aspera, and the superior part of the lateral supracondylar line. American Academy of Manual Medicine

Insertion

Quadriceps tendon.

Lateral border of patella; also forms the deep portion of the quadriceps tendon. It attaches to the deep surface of the tendons of the rectus femoris and the other vastus muscles, by the ligamentum patellae into the tibial tuberosity. American Academy of Manual Medicine

Action

Extend lower leg at the knee.

Innervation – Nerve control

Femoral nerve.

The femoral nerve is a nerve in the thigh that supplies skin on the upper thigh and inner leg, and the muscles that extend the knee.

Artery

Femoral artery.

The femoral artery is a large artery in the thigh and the main arterial supply to the lower limb. It enters the thigh from behind the inguinal ligament as the common femoral artery, a continuation of the external iliac artery. Wiki

Antagonist muscles

Gastrocnemius, Popliteus, Gracilis, and Sartorius.

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

Additional Resources
Sports Lab
Wiki
American Academy of Manual Medicine

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