Why do we belch?

Question

Scientific question

Answer 1

when we digest food in our stomach, it releases gas. The gas builds up in the stomach and is released as a belch

Answer 2

A burp — sometimes called a belch — is nothing but gas. When you eat or drink, you don't just swallow food or liquid. You also swallow air at the same time. The air we breathe contains gases, like nitrogen (say: ny-truh-jen) and oxygen (say: ahk-sih-jen).

Sometimes when you swallow these gases, they need to get out. That's where burping comes in! Extra gas is forced out of the stomach, up through the esophagus (say: ih-sah-fuh-gus, the tube for food that connects the back of the throat to the stomach), and out of the mouth as a burp.

Some kids find that drinking soda or other carbonated beverages makes them burp more. Can you guess why? If you're thinking that it's because these drinks contain extra gas, you're right! The gas that makes the drinks fizzy is carbon dioxide (say: kar-bon dy-ahk-side), another gas that can bring on big burps. Sometimes eating or drinking too fast can make a person burp because this can send extra air into the stomach. The same thing happens when you drink through a straw: extra air in = more burps out.

Burping is almost never anything to worry about. Everybody does it at least once in a while, and it's very unusual for burping to mean something is wrong in a kid's body. What can you do if you're around people and you feel a burp coming on?

It seems like the only people who can get away with really loud burps are little babies — their parents cheer when they burp because it means that the babies won't feel the extra gas in their stomachs and cry. But unless you're tiny and bald, it's probably a good idea to be polite when it's time to burp.

http://kidshealth.org/kid/talk/yucky/burp.html

Answer 3

When the stomach gasses build up they try to escape. There is a valve between the food pipe and the stomach. This valve is suppose to let food in only, under normal condition it keeps the gases and the fluids in the stomach.

If there is enough pressure built up, the valve is forced open, in fact it momentarily fails. This is belching, gases ultimately comes out of the moth accompanied by bad taste and some smell.

The valve should re-set by itself. If it does not reset, say it is deformed, then you have acid-reflux problem.

Answer 4

We can belch from eating too fast and the belch is the gas we swallowed while eating. Or it could be gas from stomach upset.

Answer 5

It is just the gas released inside the body during the process of digestion

Answer 6

to expel gas from the stomach thru da mouth when we don't wanna expel it the other way

Answer 7

the gases built up in the stomach

Answer 8

When you ask a question like that, try first asking what would happen if we didn't?