The workings of the small intestine have long been a mystery, but now we are discovering the hidden roles this organ plays in appetite, metabolism and the microbiome – and how to look after it better ...

The anatomy and function of the duodenum, the first part of the small intestine, is described in part 3 of this series on the GI tract. Having received acidic chyme from the stomach, the duodenum ...

Duodenum: The first part of the small intestine. Elastase: An enzyme found in fluids produced by the pancreas. It aids in the digestion of several proteins, including elastin, ...

Tourists visiting an unfamiliar city would have a hard time finding their way around if they were using nothing but a topological map, no matter how detailed. Most tourist maps, therefore, highlight ...