A new look at the organization of the motor system.
D000818:Animals; D001933:Brain Stem / Q000502:physiology; D002415:Cats; D002540:Cerebral Cortex / Q000502:physiology; D004525:Efferent Pathways / Q000502:physiology; D000882:Haplorhini; D006801:Humans; D007395:Interneurons / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009068:Movement; D009893:Opossums; D013116:Spinal Cord / Q000502:physiology