How does the histology of the stomach lining contribute to its function?
The stomach lining contains specialized cell types within the gastric glands:
Parietal Cells: Secrete hydrochloric acid (HCl) and intrinsic factor, essential for vitamin B12 absorption. Chief Cells: Produce pepsinogen, an inactive enzyme that is activated to pepsin by the acidic environment. Mucous Neck Cells: Secrete mucus to protect the stomach lining from the acidic environment. Enteroendocrine Cells: Release hormones like gastrin, which regulate digestive processes.
