OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the third phase of a type I hypersensitivity described as involving?
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basophils
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eosinophils
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neutrophils
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fibroblasts
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Explanation:
Detailed explanation-1: -Type I reactions (i.e., immediate hypersensitivity reactions) involve immunoglobulin E (IgE)–mediated release of histamine and other mediators from mast cells and basophils.
Detailed explanation-2: -There are two stages to type 1 hypersensitivity: the sensitization stage and the effect stage. During the sensitization stage, the person encounters the antigen but does not experience any symptoms. During the effect stage, the person has exposure to the antigen again.
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