Internal organs

Stomach


The human stomach sits slightly to the left of the middle of the body in the upper area of ​​the abdomen. The exact shape and size varies from person to person and also depends on the current filling ratio. On average, the digestive organ is about 20 to 30 centimeters long and has a capacity of around 1.5 liters.

The stomach wall consists of strong layers of muscle that allow the gastric pulp to be constantly mixed and transported further into the small intestine. The inner wall of the stomach is covered with a thick mucous membrane that contains numerous glands. The gastric glandular system produces hydrochloric acid and the enzyme pepsin. This mixture forms the gastric juice, which has a pH between two and three. The layer of mucus in the stomach prevents the organ from digesting itself.

The main tasks of the stomach include the storage of food, the killing of pathogens and the portion-wise delivery of the food pulp to the intestine. In addition, the enzyme pepsin takes over part of the digestion by breaking down proteins in the stomach. Without the stomach, we would not be able to ingest larger quantities of food and process it gradually. Easily digestible food such as fruit stays in the stomach for about an hour or two. Fat foods like meat can remain in the stomach for up to eight hours. (vb)

Stomach

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Video: Understanding Stomach and Duodenal Ulcers (January 2022).