THORAX ABDOMEN AND PELVIS

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: -The esophagus: Food travels down a muscular tube in the chest called the esophagus (ih-SAH-fuh-gus). Waves of muscle contractions called peristalsis (per-uh-STALL-sus) force food down through the esophagus to the stomach.

Detailed explanation-3: -The oesophagus is the tube-like structure present in the alimentary canal through which food passes from the mouth into the stomach. The oesophagus acts as an organ for the conduction of food and no digestion occurs here.