Law of separation of function of the spinal roots.
D000344:Afferent Pathways / Q000502:physiology; D000663:Amphibians / Q000502:physiology; D000818:Animals; D001369:Axons / Q000502:physiology; D004525:Efferent Pathways / Q000502:physiology; D005399:Fishes / Q000502:physiology; D005727:Ganglia, Spinal / Q000502:physiology*; D006801:Humans; D008322:Mammals / Q000502:physiology; D009413:Nerve Fibers, Myelinated / Q000502:physiology; D010275:Parasympathetic Nervous System / Q000502:physiology; D013045:Species Specificity; D013126:Spinal Nerve Roots / Q000502:physiology*; D013564:Sympathetic Nervous System / Q000502:physiology