Their primary function is to absorb nutrients and vitamins. The small intestine is made up of three parts—the duodenum (first part), the jejunum (middle part), and the ileum (end part).

The small intestine, where most vitamins and other micronutrients are digested and absorbed. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...

Both colon and rectal cancer affect the large intestine, which is the lowest part of the digestive system. But they start in different places within it. Colon cancer can start anywhere in the ...