Question

how do we manage to swallow our food even when we hang upside down and the food does not fall due to gravity​

Answer 1

Answer:

These contractions are known as peristalsis ("pear-ih-stall-sis"). Oncefood or water reaches the end of the esophagus, a valve called a sphincter ("sfink-tur") closes so it can't come back up! Peristalsis is so strong that itcan actually enable a person toswallow food or water while upside down!

Explanation:

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