Hello Student,

Gastric gland are of many types each having their own role and found in different positions within the stomach.

The different glands and their distribution is as follows :

1) Cardiac Part : Mucous Neck Cells are present here which secrete mucous.

2)Fundic/Gastric part : Four Types of Cells are found here

1. Peptic/Zymogenic/Chief/Central Cells : Secrete proenzymes pepsinogen and prorennin. Smaal amount of gastric lipase is also produced.
2. Oxyntic/Parietal cells : Secrete HCL and Castle's Intrinsic factor required for vit B12 absorption.
3. Mucous Neck Cells : Secrete alkaline mucous.
4. Argentaffin/Enterochromaffin/Kultchitsky Cells : Secrete vasoconstrictor serotonin and vasodilator histamine.

3)Pyloric part :

1. Mucous Neck cells : Secrete mucous
2. G Cells : Secrete Gastric which i ncreases gastric motility and stimulates gastric juice secretion by gastric glans.