Small intestine
Nutrients are absorbed into the bloodstream through small finger-like nodules on the wall of the small intestine called villi.
The small intestine is a long hollow tube situated between the stomach and the large intestine. It is the part of the digestive system where the end absorption of food occurs. The small intestine is divided into three distinct regions which are the duodenum, jejunum and ileum. The ileum region contains villi (small finger-like structures) which help to absorb digested food and nutrients such as vitamin B12 and bile acids.
