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Mammal Digestion The digestive system is composed of the digestive or alimentary tube and accessory digestive organs. • Each of the organs contributes to the digestive process in several unique ways. The length of the digestive tract depends on the type of food ingested by animals. *Mouth-foodstuffs are broken down. *Esophagus-A simple conduit between the mouth and stomach. *Stomach-chemical digestion of protien initiated and foodstuffs reduced to liquid form. *pancreas-provides A potent mixture of digestive enzymes to the small intestine. *Small Intestine-where the final stages of chemical digestion occur and where almost all nutrients are absorbed. *Large Intestine-(major difference among species in extent and importance)-in all animals water is absorbed, bacterial fermentation takes place and feces are formed. Resources: http://biology.about.acom http://humandigestivesystem.blogspot.com Trisha Hoban Biology 1407-03 Spring 2009