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Central nervous system   /sˈɛntrəl nˈərvəs sˈɪstəm/   Listen
Central nervous system

The portion of the vertebrate nervous system consisting of the brain and spinal cord.  Synonyms: CNS, systema nervosum centrale.

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"Central nervous system" Quotes from Famous Books

... the arrangement is more complex. There are first the protovertebral rings of the dermatoskeleton, these being principally the ribs, limb-girdles, and jaws. Round the central nervous system are developed the deutovertebral rings of the neuroskeleton (vertebrae in the ordinary sense). The apophyses and bodies of the vertebrae, and the bones of the members[160] are composed of columns of tritovertebrae, or vertebrae ...
— Form and Function - A Contribution to the History of Animal Morphology • E. S. (Edward Stuart) Russell

... the knowledge we have gained of the electrical and chemical phenomena of the central nervous system, we must confess that we know little indeed of the inner nature of the psycho-physical processes. What is happening in the brain—especially in the psycho-motor centres—when we move an arm by means of an act of will? What are the forms of nervous energy which are employed? Are these entirely electrical ...
— The Problems of Psychical Research - Experiments and Theories in the Realm of the Supernormal • Hereward Carrington

... upper arm. The aetiology of spasmophilia is still a matter for dispute, but the evidence which we possess is in favour of the view that we have here to deal with a disturbance of calcium metabolism. The calcium content both of the blood and of the central nervous system has been shown to be much lowered. It is in keeping with this that clinically we note how frequently spasmophilia and rickets occur in the same child. In some families the ...
— The Nervous Child • Hector Charles Cameron

... functions; in a word, of all the various functions which constitute the proper object of psychology. Modern anatomy and physiology have proved that these psychic functions are immediately dependent on the fine structure and the composition of the central nervous system, or the internal texture of the brain and spinal cord. In these we find the elaborate cell-machinery, of which the psychic or soul-life is the physiological function. It is so intricate that most men still look upon the mind as something supernatural that ...
— The Evolution of Man, V.1. • Ernst Haeckel

Words linked to "Central nervous system" :   neuroglia, corticospinal tract, nervous system, spinal cord, system, glia, pyramidal motor system, white matter, systema nervosum, substantia alba, encephalon, systema nervosum centrale, pyramidal tract, CNS, medulla spinalis, brain

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