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Updated by Erika Yigzaw on Nov 25, 2014
Erika Yigzaw Erika Yigzaw
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Digestive System and Digestion

Digestive System, Digestion Information, Digestive System Facts, News, Photos -- National Geographic

The digestive system is the series of tubelike organs that convert our meals into body fuel. In all there's about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending with the anus.