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Endoscopy uses a camera to visualize the interior of the stomach. Upper GI Endoscopy examines the upper part of the digestive system, while Colonoscopy or Lower GI Endoscopy focuses on the colon and ...
It is the muscular channel that delivers food, liquids, and saliva to the rest of the digestive system. The esophagus runs down the neck ... This then forces food and liquids out of the body. A number ...