Eructation is the medical term for the act of belching or raising gas orally from the stomach. It is preceding vomiting consists of pronged retching movement during the period of nausea and spasmodic uncoordinated contraction of muscles of respiration during diaphragm contracts.
Passing of gas through the mouth is called as burping. The return of swallowed food to the mouth is known as regurgitation. This is the process to eliminate the gas that is produced as a byproduct of microbial fermentation.
Burping keeps your stomach from expanding too much from swallowed air. That air travels back to esophagus, which leads to an audible release that people it burp.
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