#central_nervous_system__centralnervoussystem__CNS__systema_nervosum_centrale  the portion of the vertebrate nervous system consisting of the brain and spinal cord
  supertype:  #system.body_part  a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
  substance:  #white_matter
  part of:  #nervous_system
  part:  #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
     part:  #neurogliacyte__neuroglial_cell__glial_cell__glialcell  a cell of the neuroglia
  part:  #encephalon__brain  that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
     part:  #fornix  an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies
        part:  #carina_fornicis  ridge on the lower surface of the fornix of the brain
     part:  #circle_of_Willis  a ring of arteries at the base of the brain
     part:  #communicating_artery__communicatingartery__arteria_communicans__arteriacommunican  any of three arteries in the brain that make up the circle of Willis
     part:  #brain_cell__braincell  a nerve cell in the brain
     part:  #neencephalon__neoencephalon  the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts
     part:  #forebrain__prosencephalon  the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube
        part:  #peduncle  a bundle of myelinated neurons joining different parts of the brain
        part:  #corpus_callosum  a broad transverse nerve tract connecting the two cerebral hemispheres
        part:  #telencephalon  the anterior division of the forebrain; the cerebrum and related parts of the hypothalamus
           part:  #cerebrum  anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
              part:  #cerebral_hemisphere__hemisphere  either half of the cerebrum
              part:  #cerebral_cortex__cerebral_mantle__pallium  the layer of unmyelinated neurons (the gray matter) forming the cortex of the cerebrum
                 part:  #Golgi's_cell__Golgi_cell  a neuron in the cerebral cortex with short dendrites and with either a long axon or a short axon that ramifies in the gray matter
                 part:  #cortical_area__cortical_region  any of various regions of the cerebral cortex
                 part:  #frontal_lobe__frontallobe  that part of the cerebral cortex in either hemisphere of the brain lying directly behind the forehead
                    part:  #frontal_area__frontalarea__frontal_cortex__frontalcortex  the cortex of the frontal lobe
                    part:  #precentral_gyrus  the convolution of the frontal lobe that is bounded in back by the central gyrus
                 part:  #prefrontal_lobe  the anterior part of the frontal lobe
                 part:  #parietal_lobe  that part of the cerebral cortex in either hemisphere of the brain lying below the crown of the head
                    part:  #postcentral_gyrus__postcentralgyru  the convolution of parietal lobe that is bounded in front by the central gyrus
                 part:  #occipital_lobe__occipitallobe  that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head
                 part:  #temporal_lobe  that part of the cerebral cortex in either hemisphere of the brain lying inside the temples of the head
                    part:  #amygdala__amygdaloid_nucleus__corpus_amygdaloideum  an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus; as part of the limbic system it plays an important role in motivation and emotional behavior
              part:  #gyrus__gyru__convolution  a convex fold or elevation in the surface of the brain
        part:  #diencephalon__interbrain__betweenbrain__thalmencephalon  the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon
           part:  #third_eye__thirdeye__pineal_eye  a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles
           part:  #basal_ganglion__basalganglion  any of several masses of subcortical gray matter in each cerebral hemisphere that seem to be involved in the regulation of voluntary movement
           part:  #thalamus  large egg-shaped structures of gray matter that form the dorsal subdivision of the diencephalon
              part:  #geniculate_body  one of four small oval masses that protrude slightly from the underside of the thalamus and function as synaptic centers on the way to the cerebral cortex
           part:  #hypothalamus  a basal part of the diencephalon governing autonomic nervous system
     part:  #midbrain__mesencephalon  the middle portion of the brain
     part:  #hindbrain__rhombencephalon  the posterior portion of the brain including cerebellum and pons and medulla oblongata
        part:  #cerebellum  a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans
           part:  #cerebellar_artery__arteria_cerebelli__arteriacerebelli  an artery that supplies the cerebellum
           part:  #paleocerebellum  the anterior lobe of the cerebellum which was one of the earliest parts of the hindbrain to develop in mammals
        part:  #medulla_oblongata__medullaoblongata__medulla  lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
           part:  #respiratory_center__respiratorycenter  the center in the medulla oblongata and pons that integrates sensory information about the level of oxygen and carbon dioxide in the blood and determines the signals to be sent to the respiratory muscles
        part:  #myelencephalon  the posterior part of the hindbrain in developing vertebrates; forms the medulla oblongata in adults
        part:  #pons_Varolii__pons  a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain
           part:  #respiratory_center__respiratorycenter  the center in the medulla oblongata and pons that integrates sensory information about the level of oxygen and carbon dioxide in the blood and determines the signals to be sent to the respiratory muscles
     part:  #brainstem__brain_stem__brainstem  the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
        part:  #reticular_formation__reticularformation__RF  a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone
           part:  #reticular_activating_system__RAS  the network in the reticular formation that serves an alerting or arousal function
     part:  #ventricle  one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid
        part:  #spinal_fluid__cerebrospinal_fluid__cerebrospinalfluid  clear liquid produced in the ventricles of the brain; fills and protects cavities in the brain and spinal cord
  part:  #pyramidal_tract__pyramidaltract__pyramidal_motor_system__pyramidalmotorsystem__corticospinal_tract__corticospinaltract  any of the important nerve pathways 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 horn of the spinal cord
     part:  #basal_ganglion__basalganglion  any of several masses of subcortical gray matter in each cerebral hemisphere that seem to be involved in the regulation of voluntary movement
  part:  #spinal_cord__medulla_spinalis  a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tube-like structure extending from the base of the brain through the vertebral canal to the upper lumbar region
     part:  #spinal_vein__vena_spinalis__venaspinali  veins that drain the spinal cord
     part:  #Golgi's_cell__Golgi_cell  a neuron in the cerebral cortex with short dendrites and with either a long axon or a short axon that ramifies in the gray matter
     part:  #spinal_fluid__cerebrospinal_fluid__cerebrospinalfluid  clear liquid produced in the ventricles of the brain; fills and protects cavities in the brain and spinal cord

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