This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Physiology
Intrinsic factor of castle is secreted by which of the following ceils in gastric glands - 
Select and explain. 
A. Chief cells, B. Parietal cells, C. Enterochromaffin cells, D. B cells
B: Parietal cells
Answer: B: Parietal cells 
Explanation: Ans. is 'b' i.e.. Parietal cells In stomacho Parietal cells (oxyntic cells) secrete - HC1 and intrinsic factor of castle,o Chief cells (zymogen or peptic cells) secrete - Pepsinogen,o G cells secrete - Gastrino D cells secrete - Somatostatino ECL cells secrete - Histamine