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Questions and Answers
What is the primary target of hypersensitivity reactions?
What is the primary target of hypersensitivity reactions?
What is the mechanism of Type I hypersensitivity reaction?
What is the mechanism of Type I hypersensitivity reaction?
Which type of hypersensitivity reaction involves sensitized T cells?
Which type of hypersensitivity reaction involves sensitized T cells?
What is the difference between type II and type III hypersensitivity reactions?
What is the difference between type II and type III hypersensitivity reactions?
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Which type of hypersensitivity reaction involves sensitized T cells?
Which type of hypersensitivity reaction involves sensitized T cells?
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Which type of hypersensitivity reaction involves sensitized T cells?
Which type of hypersensitivity reaction involves sensitized T cells?
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Which type of hypersensitivity reaction involves IgE antibodies on mast cells and basophils?
Which type of hypersensitivity reaction involves IgE antibodies on mast cells and basophils?
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Which type of hypersensitivity reaction is directed against self-antigens?
Which type of hypersensitivity reaction is directed against self-antigens?
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Which type of hypersensitivity reaction involves sensitized T cells?
Which type of hypersensitivity reaction involves sensitized T cells?
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Which type of hypersensitivity reaction involves IgE antibodies on mast cells and basophils?
Which type of hypersensitivity reaction involves IgE antibodies on mast cells and basophils?
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Which type of hypersensitivity reaction involves IgM or IgG antibodies against cellular antigens?
Which type of hypersensitivity reaction involves IgM or IgG antibodies against cellular antigens?
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Which type of hypersensitivity reaction involves IgM or IgG antibodies against cellular antigens?
Which type of hypersensitivity reaction involves IgM or IgG antibodies against cellular antigens?
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Which type of hypersensitivity reaction involves IgM or IgG antibodies against cellular antigens?
Which type of hypersensitivity reaction involves IgM or IgG antibodies against cellular antigens?
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What is the main difference between Type II and Type III hypersensitivity reactions?
What is the main difference between Type II and Type III hypersensitivity reactions?
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What happens upon first exposure to an antigen in a hypersensitivity reaction?
What happens upon first exposure to an antigen in a hypersensitivity reaction?
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Study Notes
- Hypersensitivity reactions involve excessive immune responses that can cause cell damage and harmful lesions.
- These reactions can be directed against self-antigens or foreign antigens.
- Lymphocytes become sensitized to the antigen upon first exposure.
- Subsequent exposures elicit damaging reactions that are specific to the antigen.
- Hypersensitivity reactions can be classified into four types (I, II, III, and IV).
- Types I, II, and III are antibody-mediated, while type IV is cell-mediated.
- Type I involves IgE antibodies on mast cells and basophils.
- Type II involves IgM or IgG antibodies against cellular antigens.
- Type III involves IgM or IgG antibodies against soluble antigens.
- Type IV involves sensitized T cells.
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Description
Test your knowledge of hypersensitivity reactions with this quiz! Learn about the different types of hypersensitivity reactions, including antibody-mediated and cell-mediated responses. Understand the role of lymphocytes and antibodies in these reactions, as well as the specific antigens that trigger them. Use your expertise to classify each reaction correctly as type I, II, III, or IV. Challenge yourself and see how well you know hypersensitivity reactions!
