digestive system

• Digestion of food starts in the mouth. Teeth break down the food and mix it with the enzymes in saliva.
• the oseophagus is a thin tube that connects the mouth to the stomach.
• the liver releases a chemical called bile into the intestines. Bile breaks down lipids in the food.
• the stomach is a muscular bag which mixes food and drink with acid.
• the pancreas releases enzymes into the intestines which break down carbohydrates, protein and lipids in food.
• the small intestines is where carbohydrates, proteins and lipids digest. The nutrients produced are then absorbed into the blood.
• Food which cannot be broken down - mainly fibre - passes into the large intestine. Water is absorbed into the blood.