THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -In the stomach several mucosal defence mechanisms protect the stomach against hydrochloric acid and noxious agents. The pre-epithelial protection is made up by the mucus-bicarbonate barrier. Mucus and bicarbonate, secreted by mucus cells, create a pH gradient maintaining the epithelial cell surface at near neutral pH.

Detailed explanation-2: -What Is the Gastric Mucosa? The gastric mucosa is a layer of mucous membrane found in the stomach. This lining is found on the inner surface of the stomach, along with the glands and gastric pits. It is always covered in a layer of thick mucus secreted by columnar epithelial and glandular cells.