The primary function of mucus in the stomach is to neutralize stomach acid. activate pepsinogen to pepsin. protect the stomach cells from gastric juices (e. g., hcl). emulsify fats.

The primary function of mucus in the stomach is protect the stomach cells from gastric juices (e.g., HCl).

Explanation:

The stomach is an important organ in the process of digestion, it performs a variety of functions that include the storage and exposure of food to the acid it secretes, in addition to providing a barrier that prevents the passage of microorganisms to the intestine. The gastric mucosa protects the stomach from digestion caused by acid gastric juices in which the superficial cells of the mucosa would produce a mucous layer, which would leave the stomach completely unprotected. The stomach creates gastric acids to break down food. These acids, also called gastric juices, are very strong acids found in the stomach. Its function is to promote the digestion of proteins that come from the products we eat. The components of gastric juices are produced by the gastric glands found in small cavities of the gastric mucosa. The gastric glands are elongated and consist of several types of cells: superficial cells, main cells and parietal cells. Superficial cells produce mucus that protects the stomach from attack by digestive acids and enzymes.

well, i believe that the answer is 2. : 3