The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about ... The esophagus empties into the stomach, a large, muscular chamber that mixes ...

Find out about the different stages of a human life cycle and how ... What is the digestive system? Discover how the food gets into the body, through the digestive system. What happens to food ...

DR CHRIS VAN TULLEKEN:If I said to you that inside your body right about here ... to take a close look at the digestive system of a human. The stomach can stretch to hold approximately one litre ...

The main function of the immune system is to protect the body from intruders, by filtering the cells of your body from other cells that don’t belong to the human body. This immune response happens too ...