Vastus Intermedius - 3D Animation

Video Description

Origin:
Superior 2/3 of anterior and lateral surfaces of femur; also from lateral intermuscular septum of thigh

Insertion:
Lateral border of patella; also forms the deep portion of the quadriceps tendon

Action:
Extends the knee

Innervation:
Muscular branches of femoral nerve (L2, L3, L4)

Arterial Supply:
Lateral circumflex femoral artery