The digestive system is the series of tubelike organs that ... The first of three sections of the small intestine, the duodenum, produces large quantities of mucus to protect the intestinal ...

Dr Chris van Tulleken introduces the clip in which Dr Michael Mosley swallows a small camera which travels through his digestive system. Peristalsis is described by another doctor. Live pictures ...

The digestive system provides our body with the energy ... The food is then poured into the tights, this represents the small intestine inside the body. This is where the nutrients from the ...