Also known as proximal small intestine
The duodenum is the first section of the small intestine in most vertebrates, including mammals, reptiles, and birds. In mammals, it may be the principal site for iron absorption. The duodenum precedes the jejunum and ileum and is the shortest part of the small intestine.
The duodenum is the first and shortest section of the small intestine, located before two other sections called the jejunum and ileum. In mammals, it may be the principal site where iron is absorbed from food into the body.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).