Each part of the digestive system has a function. Find out more with Bitesize. For students between the ages of 11 and 14.

The mouth is where digestion begins, and it breaks down food into smaller particles. Read more about the functions and biological structure of the mouth.

On World Digestive Health Day, which is a reminder that a healthy digestive system is the key to overall health and quality life, we spoke to Dr Subhasish Mazumder, who is the senior Director of ...