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Digestive system

End to beginning

Your arse is just the beginning – or rather the end – of your digestive system, which extracts nutrients and goodness from the food we eat. What’s left is waste which we get rid of as shit.

Many people believe that the digestive system is just a small tube linked to the stomach where shit sits and waits for the rectal express to the toilet. In fact, from mouth to arsehole, it’s a nine metre (30 foot) rubber-like tube, lined with muscles which massage the food and waste along, regulated by a series of locks and chambers.

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