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Are you interested in learning more about the duodenum? Download our app where you can find more videos on human anatomy: https://www.kenhub.ru?utm_medium=social&utm_source=youtube&utm_campaign=duodenum&utm_content=description Using the anterior view of the abdomen, in this video we can learn about the anatomy of the duodenum - a very important structure of the gastrointestinal tract and the first of the three segments of the small intestine. We will also study some of the structures surrounding the duodenum. The duodenum is located between the stomach and the jejunum - the jejunum is the second segment of the small intestine. Specifically, the duodenum is attached to the pyloric portion of the stomach. This initial section of the small intestine is approximately 20-25 cm long. What does it do? The main function of the duodenum is to receive partially digested food from the stomach, allowing it to begin absorbing nutrients.