Overview of the gastrointestinal tract. The gastrointestinal tract, also called the digestive tract, alimentary canal, or gut, is the system of organs that takes in food, digests it to extract energy and nutrients, and expels the remaining waste. No labels
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"LadyofHats - Drawing Overview of the gastrointestinal tract - No labels" by Mariana Ruiz Villarreal and Jordi March i Nogué is in the Public Domain.
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