Take a look inside the human body's digestive system. This site features diagrams of the digestive tract and each part is accompanied by labels and descriptions. Just select an organ by moving the mouse over its image.

In this module, find out the locations and primary secretions involved in the chemical digestion of carbohydrates, proteins, lipids, and nucleic acids.

Students learn about the main digestive roles of the liver, pancreas, and gallbladder, and identify three main features of liver histology that are critical to its function.

Pizza, milk shakes, and ice cream sundaes all contain dairy products, therefore they cannot be eaten by the majority of people around the world. Dairy products contain the sugar molecule lactose, and the majority of people on the planet...

This article, written for younger readers, explains cystic fibrosis (CF), an inherited disease that causes the body to produce mucus that's extremely thick and sticky.