BrainDefinition (http://en.wikipedia.org/wiki/Brain) The brain is the center of the nervous system in all vertebrate and most invertebrate animals—only a few invertebrates such as sponges, jellyfish, adult sea squirts and starfish do not have one, even if diffuse neural tissue is present. It is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste, and smell. The brain of a vertebrate is the most complex organ of its body. (Wikipedia) Preferred Units: N/A Scope Note: N/A This term is used for the following terms: N/A Approved Date 04-Apr-2013 Click here to give feedback on this term or suggest an update. |