gastrointestinal system

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Related to gastrointestinal system: digestive system, nervous system, respiratory system

gastrointestinal system:

see digestive systemdigestive system,
in the animal kingdom, a group of organs functioning in digestion and assimilation of food and elimination of wastes. Virtually all animals have a digestive system. In the vertebrates (phylum Chordata, subphylum Vertebrata) the digestive system is very complex.
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gastrointestinal system

[¦ga·strō‚in′tes·tən·əl ′sis·təm]
The portion of the digestive system including the stomach, intestine, and all accessory organs.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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