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Question

Inflammatory response in allergy is due to the release of _______ from the mast cells.

A
antigen
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B
antibody
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C
histamine
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D
none of these
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Solution

The correct option is C histamine
The granules of mast cells are loaded with histamines. Histamines increase the blood flow to the area and the leakage of fluid and proteins from the blood into the tissue space. Thus, the quick release of histamine produces the redness and swelling associated with inflammation.

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