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			November 21, 2008

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You are here : AllRefer.com > Reference > Encyclopedia > Anatomy And Physiology > nervous system
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nervous system, Anatomy And Physiology

Related Category: Anatomy And Physiology

nervous system, network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system. Invertebrate animals show varying degrees of complexity in their nervous systems, but it is in the vertebrate animals (phylum Chordata, subphylum Vertebrata) that the system reaches its greatest complexity.

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