Antiperistalsis is the action of peristalsis occuring in the opposite direction to the direction in which it usually occurs.
Antiperistalsis is the action of peristalsis occuring in the opposite direction to the direction in which it usually occurs.
When you vomit, the muscular movements in your esophagus reverse direction due to coordinated contractions of the smooth muscles. This process, called antiperistalsis, pushes the contents of the stomach back up through the esophagus and out of the mouth. The diaphragm and abdominal muscles also contract forcefully to help expel the contents. This reflex is typically triggered by irritation or stimulation of the stomach or gastrointestinal tract.
"Regurgitation is the act of puking on purpose. With birds, they use it to feed their young. And I have no idea what a ruminant is." <------- that was the last answer... Regurgitation is the returning of swallowed food from the rumen of the ruminant to the mouth for further mastication. I think the purpose is so that they don't need to chew while they graze, they just eat as many as they can and rest then regurgitate the food, saving time and effort.