Question

The parietal cells in the stomach secrete

• A. Mucus & bicarbonate ion
• B. Hydrochloric acid & intrinsic factor
• C. Pepsinogen
• D. Gastric lipase

Hint:

Parietal = Protons (H+) and intrinsic factor.

Answer 1

The Correct Option is B

Step 1: Concept
The gastric mucosa contains various cell types that secrete different components of gastric juice.

Step 2: Meaning
Parietal cells (also known as oxyntic cells) are located in the gastric glands of the stomach.

Step 3: Analysis
Mucus cells secrete mucus. Chief cells secrete pepsinogen and lipase. Parietal cells are responsible for secreting Hydrochloric acid (HCl) for digestion and Intrinsic Factor for Vitamin $B_{12}$ absorption.

Step 4: Conclusion
The dual secretion of HCl and intrinsic factor is the characteristic function of parietal cells.

Final Answer: (B)