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Vomiting

Definition

Vomiting (or emesis), which is the forceful ejection of contents of the upper gut through the mouth.


Terms often confused with vomiting

- Retching involves coordinated, voluntary muscle activity of the abdomen and thorax--in effect, a forced respiratory inspiration against a closed mouth and glottis without discharge of gastric contents from the mouth.

- Regurgitation is the effortless return of gastric or esophageal contents into the mouth without nausea, and it occurs without spasmodic, abdominal, thoracic, or gastrointestinal muscular contractions (i.e. Retchinq).

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