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central nervous system
(Physiology) central nervous system
central nervous system.
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|Noun||1.||CNS - the portion of the vertebrate nervous system consisting of the brain and spinal cord|
system - a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
nervous system, systema nervosum - the sensory and control apparatus consisting of a network of nerve cells
glia, neuroglia - sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system
brain, encephalon - that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
substantia alba, white matter - whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
corticospinal tract, pyramidal motor system, pyramidal tract - any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord