Small intestine
Videos
The small intestine or small bowel is an organ in the gastrointestinal tract where most of the absorption of nutrients from food takes place. It lies between the stomach and large intestine, and recei
Micrograph of the small intestine mucosa showing the intestinal villi and crypts of Lieberkühn.
Tissue layers (mucosa, submucosa and muscularis)
Gastrointestinal tract
Videos
The gastrointestinal tract is the tract or passageway of the digestive system that leads from the mouth to the anus. The tract is one of the largest of the body's systems. The GI tract contains all th
Small intestine
…The small intestine or small bowel is an organ in the gastrointestinal tract where most of the absorption of nutrients from food takes place. It lies between the stomach and large intestine, and receives bile and pancreatic juice…
Diagram of human microbiota depicted in various regions of the gastrointestinal tract