The quadriceps complex in bipedal man.
D001696:Biomechanical Phenomena; D004576:Electromyography; D006621:Hip Joint / Q000294:innervation / Q000502:physiology; D006801:Humans; D007719:Knee Joint / Q000294:innervation / Q000502:physiology; D009068:Movement; D009132:Muscles / Q000294:innervation / Q000502:physiology*