Question

define peristalsis and anti peristalsis ​

Answer 1

wave like motion of food pipe is called peristalsis

Answer 2

$\huge\mathfrak\purple{HELLO}$

✨$\mathbb{ Peristalsis}$✨

↪Peristaltic movement is the movement that refers to the constriction and relaxation of muscles of the esophagus, intestine, and stomach.

↪It is a wave-like structure, which starts in the esophagus when the bolus of food is swallowed.

✨$\mathbb{Anti - Peristalsis}$✨

↪Anti-peristalsis which is also called as Retroperistalsis, is the reverse of peristalsis movement.

↪It usually occurs as vomiting.

↪Food poisoning, activates the emetic center of the brain which in turn signals a vomiting reflex.

↪Food then moves in the opposite direction, often from the duodenum into the stomach.