Question

Слизистая оболочка желудка выделяет желудочный сок, который содержит ..... кислоту, обеззараживающую пищу, и ......, защищающую стенки желудка от самопереваривания.

Answer 1

Слизистая оболочка желудка выделяет желудочный сок, который содержит соляную кислоту, обеззараживающую пищу, и слизь, защищающую стенки желудка от самопереваривания.

Answer 2

Вроде соляная кислота
слизь

Answer 3

The Function of Gastric Mucosa and Gastric Juice

The gastric mucosa, which lines the stomach, plays a crucial role in the digestion process. It secretes gastric juice, a mixture of various substances that aid in the breakdown of food. Gastric juice contains hydrochloric acid, which helps to sterilize the food by killing bacteria and other microorganisms.

In addition to hydrochloric acid, gastric juice also contains pepsin, an enzyme that breaks down proteins into smaller peptides. Pepsin is activated by the acidic environment created by hydrochloric acid.

Protection of the Stomach Lining

The stomach lining is protected from self-digestion by several mechanisms. One of these mechanisms is the production of a layer of mucus by the gastric mucosa. This mucus forms a protective barrier that prevents the acid and enzymes in gastric juice from coming into direct contact with the stomach lining.

Furthermore, the gastric mucosa continuously produces new cells to replace those that are damaged by the acidic environment. This process helps to maintain the integrity of the stomach lining and prevent self-digestion.

Summary

To summarize, the gastric mucosa of the stomach secretes gastric juice, which contains hydrochloric acid and pepsin. Hydrochloric acid helps to sterilize the food, while pepsin aids in the breakdown of proteins. The stomach lining is protected from self-digestion by the production of mucus and the continuous renewal of cells.

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