- central nervous system, CNS, systema nervosum centrale - the portion of the vertebrate nervous system consisting of the brain and spinal cord
--1 is a kind of system
--1 is a part of nervous system, systema nervosum
--1 has parts:
--1 has substances: white matter, substantia albaneuroglia, glia; brain, encephalon; pyramidal tract, pyramidal motor system, corticospinal tract; spinal cord, medulla spinalis