When we eat food, it passes first through the mouth. In the mouth, our crush it and mix it with a liquid called . These crushed pieces of food, travel through the esophagus and into the . There are mix with liquids called . These liquids help break down the food. In the small intestine, the food mixes with . from the liver. Then the food passes into the where it becomes faeces. Finally, the faeces are expelled from the body.
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