Question

The above-given image can be related to

• A. Anaphylaxis
• B. Agglutination
• C. Blood coagulation
• D. None of the above

Answer 1

The correct option is A Anaphylaxis

The given image is related to anaphylaxis which is type-I hypersensitivity reaction in which immunoglobulin E binds to the antigen. Antigen-bound IgE then activates FcεRI receptors on mast cells and basophils. This leads to the release of inflammatory mediators such as histamine. These mediators subsequently increase the contraction of bronchial smooth muscles, trigger vasodilation, increase the leakage of fluid from blood vessels, and cause heart muscle depression.

So the correct answer is option A.