Stewart the Sandwich

Stewart the Sandwich is excited to be picked up and eaten into an anticipating mouth! He is ingested. The teeth break down Stewart into smaller bits to be swallowed. Saliva lubricates the food. The enzyme in the saliva is called amylase and breaks down starch in the bread.
Stewart the Sandwich slides down the oesophagus into the stomach. A wave of contraction passes along the oesophagus pushing Stewart forward.
In the small intestine Stewart is broken down by more enzymes! Amylase breaks down starch in Bartholomew Bread, lipase breaks down fats in Charlie Cheese and protease breaks down protein in Charlie Cheese and Harald Ham. The acid is neutralised by pancreatic juice and bile which come from the liver and pancreas. Most of Stewart’s nutrients are absorbed into the blood.
Stewart the Sandwich is relieved to enter the large intestine. The large intestine absorbs most of the water from Stewart into the blood. Some bacteria in the large intestine can use the remains of Stewart the Sandwich to make some vitamins the body needs.
He enters the stomach and is irritated that he has to stay there for approximately four hours! The stomach helps to break down Stewart. Protease helps break down the protein in the ham and cheese.
Finally the remains of Stewart Sandwich that have not been absorbed into the cells of the body reach the rectum. The rectum stores Stewart Sandwich safely before being removed from the body.

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