it is because of the peristalsis
Esophagus
Peristalsis is the series of contractions that push food through the esophagus into the stomach. It is a coordinated muscle movement that helps to move food along the digestive tract.
Esophagus is a part of the human body located in the throat. In the esophagus, muscles push food downward from the back of the mouth into the stomach.
The peristaltic movements are muscle contractions and its function on the esophagus is to push food down into the stomach and prevent it from going back into the esophagus.
The chewed up lump of food is known as a bolus.
The stomach receives food from the esophagus. Once food travels through the esophagus, it enters the stomach where digestion begins.
After the break down of food by the stomach and the mouth. Majority of food is absorbed in the small intestines after the stomach. While the large intestines do absorb nutrients its main function is the reabsorption of water before defection. Some molecules can be directly absorbed into the bloodstream in the stomach by their composition and the amount of blood supply to the stomach itself for example alcohol.
The food moves in the food pipe because muscles push it down into the stomach.
The esophagus is a muscular tube that connects the throat to the stomach. When you swallow, muscles in the esophagus contract to push food down towards the stomach through a series of coordinated muscle movements called peristalsis. The esophageal sphincter at the lower end of the esophagus opens to allow food to enter the stomach and then closes to prevent backflow.
The esophagus is an organ that propels food from the mouth to the stomach not actuating on the digestive mechanism. Its task is to push forward the food or liquid you have eaten or drunk.
Food moves through the esophagus on its way to the stomach. It is a muscular tube that connects the mouth to the stomach and uses peristalsis to push food down.
Peristalsis. The movement of muscles bringing the food to the stomach.