Answer:
(a) HCl : parietal cells
(b) pepsinogen : zymogenic (chief) cells
(c) histamine : enterochromaffin-like cells (ECLs) cells
Step-by-step explanation:
Gastric mucosa, mucous membrane layer present in the stomach contains gastric glands and the gastric pits.
The three types of gastric glands present are- cardiac glands, fundic or oxyntic glands and pyloric glands
(a) HCl : Secreted by the parietal cells present in the fundus
(b) pepsinogen : secreted by the zymogenic (chief) cells present in the oxyntic glands
(c) histamine : secreted by the enterochromaffin-like cells (ECLs) cells present in the oxyntic glands.