Question

HOW DOES THE FOOD MOVE UP DURING VOMITING?​

Answer 1

Answer:

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Explanation:

When we vomit, an anti-peristaltic movement pushes food in the opposite direction to the peristaltic waves that normally move food down through the digestive tract. A reflex closes the glottis to prevent vomit from going into the trachea and the lungs.

Answer 2

Local irritation of the stomach, such as bacteria or food poisoning, activates the emetic center of the brain which in turn signals an imminent vomiting reflex. Food then moves in the opposite direction, often from the duodenum into the stomach.