Quadriceps Femoris

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Quadriceps Gray.png
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