Mucus is mostly made up of water and glycoproteins, and also bicarbonate ions which are also secreted by foveolar cells.

粘液主要由水和糖蛋白组成，还有胃小凹细胞分泌的碳酸氢根离子。

First, the gastric glands also have foveolar cells, also called surface mucus cells, because they are closer to the surface of the stomach, and they secrete mucus.

首先，胃腺也有小凹细胞，也称为表面粘液细胞，因为它们靠近胃表面并分泌粘液。