PATHOLOGY

Detailed explanation-1: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

Detailed explanation-2: -What is peristalsis? the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward.

Detailed explanation-3: -Nephrons are microscopic units that filter the blood and produce urine. Each kidney contains about one million nephrons. Each nephron contains a glomerulus surrounded by a thin-walled, bowl-shaped structure (Bowman capsule).