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central nervous system

(SEN-trul NER-vus SIS-tem)
The brain and spinal cord. Also called CNS.
Drawing of brain anatomy showing the brain stem, pons, medulla, spinal cord, cerebellum, cerebrum, meninges, ventricles (fluid-filled spaces), and skull.Enlarge this image in new window
Anatomy of the brain, showing the cerebrum, cerebellum, brain stem, and other parts of the brain.
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