Quadriceps Femoris

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Quadriceps femoris has four muscles (rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis)
Quadriceps Femoris
Muscle Type
Origin	Combined rectus femoris and vastus muscles
Insertion	Tibial tuberosity
Action	Knee extension; Hip flexion (Rectus femoris only)
Synergists
Antagonists
Spinal innervation	L2, L3, L4
Peripheral Innervation	Femoral Nerve
Vasculature