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What causes snot?


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Mucus can form in different parts of the body for different reasons, like lungs, intestines, etc. What mucus are you asking about?

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Daily, about 1 litre of mucus secretion takes place in nose. Mucus traps most of the irritants, allergens, microbes in about 13,000 litres of air we breathe in. ChaCha on!

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It seems like the main function of mucus, snot, boogers, whatever you want to call it is to trap particles, junk in the air way.

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Mucus is made by, mucus membranes. Your body has them in all sorts of places: the stomach, intestines, nose, lungs, etc.

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