The three major types of cells found in the gastric glands with their secretions are as follows:

i. Mucous Neck cells – they secrete mucus

ii. Peptic or chief cells – they secrete Proenzyme Pepsinogen and Prorennin

iii. Parietal or oxyntic cells – they secrete HCl and intrinsic factor. Intrinsic factor is essential for absorption of vitamin B12.