Question

Which of the following has H${}_2$ receptor of histamine?

• A. Abdomen
• B. Skin
• C. Lungs
• D. Gastric mucosa of stomach

Answer 1

The correct option is D Gastric mucosa of stomach

Allergies are the reactions or the response given to the antigens which are in the form of particles. Allergy is also termed as hypersensitivity. The cells release IgE antibodies, histamines and other cytokines which manifest the symptoms of the reaction. When the histamines bind to the H${}_2$ receptors which are present in the parietal cells in the gastric mucosa of the stomach, the acid release stops. The symptoms of the allergic reaction are also reduced.

Thus, the correct answer is option D.