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: Medicine
Acid secreting cells in stomach known as 
Select and explain. 
A. Mucus cells, B. Parietal cells, C. Chief cells, D. Endocrine cells
B: Parietal cells
Answer: B: Parietal cells 
Explanation: B. i.e. (Parietal cells) (1857- HI7th)* Acid secreting parietal cell is located in the oxyntic gland, also secretes intrinsic factor* Parietal cell express receptors for several stimulants of acid secretion including histamine (H2), gastrin (cholecystokinin) and acetylcholine (Muscarinic M3)* Chief- cells found primarily in the gastric fundus**, synthesizes and secretes pepsinogen* Gut associated lymphoid tissue (GALT) is located in lamina propria**