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'.