The digestive system

Digestive phenomena

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What is vomiting?

Vomiting is a defence mechanism in case we swallow toxic substances. Vomiting empties some of the contents of the stomach through the mouth. It should not be confused with regurgitation, which is a passive movement of the contents of the stomach back up towards the mouth.

What causes vomiting?

Food poisoning, inflammation of the digestive tract, such as a stomach ulcer, or gastroenteritis can cause vomiting. It can also be a side effect of some types of medication.

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