The epithelial lining of the stomach secretes fundamental substances which aid in the digestion process, namely:
Mucous cells
Parietal cells
Chief cells
G-cells
= which secrete alkaline mucus that protects the lining of the stomach against acid.
= which secretes hydrochloric acid that destroys ingested bacteria or microorganism.
= which secrete protein- digesting enzymes pepsin and rennin.
= secrete the hormone gastrin, a protein that controls acid secretion.