A journey through the digestive system, from the moment food enters your mouth, through your stomach and intestines, until it leaves your body as waste.
- The digestive process begins from the moment you see and smell food, when the salivary glands are activated.
- Saliva contains amylase, an enzyme that helps break down starch into smaller sugars.
- Once you have physically broken down food by chewing, the tongue pushes it down the oesophagus.
- The oesophagus contracts to push food along by an action called 'peristalsis'.
Every mouthful you eat follows the same incredible journey through your body.
Whether it's fruit or fish, noodles or nuts, food enters your mouth, passes through your stomach, winds around the long tubes of your intestines, then finally reaches your rectum, and ends up as faeces.
Along the way, the food is ...