The Human Digestive System

The digestive system breaks food into small, soluble substances that the body can absorb and use for energy, growth and repair.

• Mouth: teeth chew food and saliva begins digesting starch.
• Oesophagus: pushes food down to the stomach.
• Stomach: acids and enzymes break down proteins.
• Small intestine: most digestion and absorption of nutrients happens here.
• Large intestine: absorbs water and forms waste.

• …