State of motoneurons and the monosynaptic reflex arc before a simple voluntary movement.
D001132:Arm; D004576:Electromyography; D006801:Humans; D007866:Leg; D009046:Motor Neurons / Q000502:physiology*; D009068:Movement; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology; D012023:Reflex, Monosynaptic