Presynaptic inhibitory action of cerebral cortex on the spinal cord.
D002540:Cerebral Cortex / Q000502:physiology*; D006801:Humans; D009424:Nervous System Physiological Phenomena; D013116:Spinal Cord / Q000502:physiology*; D013569:Synapses / Q000502:physiology*
CEREBRAL CORTEX/physiology; SPINAL CORD/physiology; SYNAPSES/physiology