The Quadriceps Muscle, or simple, The Quads The quadriceps muscle is a group of four muscles located in the anterior thigh on both sides of the body and are needed to be strong and quick for faster running speed. Their names are: 1) Vastus Rectus (a.k.a. Rectus Femoris), 2) Vastus Medialis, 3) Vastus Lateralis, and 4) Vastus Intermedialis. These muscles are shown in Figure 1 below: Figure 1. The Quadriceps Muscle. Innervation, or, Nerve Supply to the Quadriceps Muscle The nerve supply to the quadriceps muscles is supplied by the the femoral nerve . See Figure 2: Figure 2. LumboSacral… read more