Question

Oxyntic cells secrete
A. HCl
B. Trypsin
C. NaOH
D. Pepsinogen

Answer 1

Oxyntic cells also called parietal cells are the epithelial cells that secrete hydrochloric acid (HCl) and intrinsic factor. It is located in the gastric glands found in the lining of the fundus and in the body of the stomach.

Complete answer:
Parietal cell secretes hydrochloric acid. HCL is also known as gastric juice to help digestion of food. The acid is secreted into large canaliculi, deep invaginations of the plasma membrane which are continuous with the lumen of the stomach. The PH of gastric juice is 8. The essential role in digestion, the parietal cell is under rigorous modulation by numerous pathways. Gastric acid is necessary for the activation of pepsinogen, as well as for acidification of the gastric lumen that creates a barrier to the transit of possibly pathogenic bacteria.
The pathway for stimulation of gastric acid secretion is histaminergic stimulation is considered to be the strongest activation pathway.so the correct answer is (A).

In option (B) Trypsin is not secreted by oxyntic cells, it is secrete by pancreases and helps in the digestion of food.so this option is not correct.

In option (C) NaOH is not secreted by oxyntic cells used in metal cell processes and in this process metal cells are reacted with water and produce sodium hydroxide.so this option is not correct.

In option (D) Trypsin is not secreted by oxyntic cells its secrete by stomach and gastric cells. so this option is not correct.

Hence, the correct answer is option (A).

Additional information: Structure of oxyntic cells are Canaliculi found in deep infolding and little channel its dynamic. functions where hydrogen ions are formed and dissociation of carbonic acid potassium and chloride ions diffuse into canaliculi.

Note: Parietal cells also produce a glycoprotein as an intrinsic factor. It is required for absorption of vitamin B12 in the diet. Its results form in autoimmune disorder.