Quadriceps Muscle – defined
16 March 2010
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The large four-part extensor muscle at the front of the thigh. This group of muscles at the front of the thigh that arises in the hip and pelvis and inserts as a strong tendon below the kneecap (patella). The quadriceps straightens and helps stabilize the knee. It is the great extensor muscle of the knee, forming a large fleshy mass which covers the front and sides of the femur. It is the strongest and leanest muscle in the human body. Most commonly exercised using squats.
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