On the normal use of reflexes.
D000818:Animals; D002490:Central Nervous System / Q000502:physiology; D006801:Humans; D008124:Locomotion; D009044:Motor Cortex / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009068:Movement; D009119:Muscle Contraction; D009132:Muscles / Q000294:innervation; D009469:Neuromuscular Junction / Q000502:physiology; D012018:Reflex