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Gastrointestinal System Overview - Medical Art Library
License Image The gastrointestinal system has two components, the gastrointestinal tract and the accessory digestive organs. The gastrointestinal tract is a long muscular tube which extends from the mouth to the anus. It includes the oral cavity, pharynx, esophagus, stomach, duodenum, small intestine, large intestine, rectum and anus. The accessory digestive organs are: the salivary …