The duodenum: This receives chyme from the stomach and digestive enzymes from the liver and pancreas. The jejunum: Most of the chemical digestion and absorption occur here.

The digestive system is the series of tubelike organs that convert our meals into body fuel. ... the small intestine is where the major digestion and absorption of nutrients take place.

This first section of the small intestine is called the duodenum. Your pancreas releases digestive juices through a duct into your duodenum. This fluid is rich in enzymes that break down fats, ...