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 small intestine, despite its name, is the longest part of the gastrointestinal tract. It works with other organs of the digestive system to further digest food after it leaves the stomach and ...

Scientists have created a synthetic small intestinal lining designed to treat certain digestive diseases or make it easier for the body to absorb certain drugs.

The wall of the small intestine and colon is composed of four layers: mucosa (or mucous membrane), submucosa, muscularis (or muscularis propria), and adventitia (or serosa).

It's a long, thin organ at the end of your digestive tract where your body produces and stores stool. Your large intestine is responsible for ...

Biopharmaceuticals, medium- and high-molecular weight biologically active macromolecules, are not easily absorbed by the small intestine, the main organ responsible for gastrointestinal absorption ...

Your small intestine is around five metres long, making it the longest section of your digestive tract. Although it is longer than your large intestine it has a smaller diameter.

A small, finger-like projection from the large intestine, the appendix, can become infected, causing appendicitis. Learn more about how the intestines work here.

The small intestine may be especially susceptible to these treatment methods as it experiences a high cell turnover rate, especially for the rapidly dividing cells of the mucosa (Keefe et al, 2000).

Some, but not all, bacteria stimulate the formation of a functional mucus system with removable mucus in the small intestine and a stratified impenetrable inner mucus layer in colon.

SIS comes from the middle layers of the pig's small intestine. It is a complex matrix of collagens, other proteins and growth factors, a combination that somehow tells the body how to rebuild tissue.