What happens to your diaphragm when you have hiccups?

The diaphragm regulates breathing. When your diaphragm contracts, your lungs take in oxygen. When your diaphragm relaxes, your lungs release carbon dioxide. The diaphragm contracting out of rhythm causes hiccups

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The diaphragm pulls down.

Explanation:

The reason for this is to draw air into the lungs.

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