Micro & Immunology · single question
Mast cells are central to which type of hypersensitivity?
Show answer and explanation
Correct answer: A. Type I
- A. Correct. IgE-sensitized MAST cells degranulate (histamine, etc.) in Type I immediate hypersensitivity.
- B. Incorrect. Type II is antibody (IgG/IgM)-mediated cytotoxicity.
- C. Incorrect. Type III is immune-complex mediated.
- D. Incorrect. Type IV is delayed, T-cell mediated.
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