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Questions and Answers
What is the effector cell of the immediate hypersensitivity reaction?
What is the effector cell of the immediate hypersensitivity reaction?
- Monocytes
- Eosinophils (correct)
- Neutrophils
- Macrophages
What is the antibody class involved in immediate hypersensitivity reactions?
What is the antibody class involved in immediate hypersensitivity reactions?
- IgA
- IgG
- IgM
- IgE (correct)
Which antibody is produced by B-lymphocytes and binds to Fc receptors on basophils and mast cells?
Which antibody is produced by B-lymphocytes and binds to Fc receptors on basophils and mast cells?
- IgG
- IgE (correct)
- IgM
- IgA
What is required to cause degranulation of mast cells and basophils during an allergic response?
What is required to cause degranulation of mast cells and basophils during an allergic response?
Which phase of the immediate hypersensitivity reaction involves the release of histamine and tryptase?
Which phase of the immediate hypersensitivity reaction involves the release of histamine and tryptase?
What is the main role of the high-affinity IgE receptor in mediating the allergic response?
What is the main role of the high-affinity IgE receptor in mediating the allergic response?
What is the consequence when multivalent antigens come in contact with mast cells or basophils?
What is the consequence when multivalent antigens come in contact with mast cells or basophils?
Which condition can occur if prompt treatment with epinephrine is not administered during a severe allergic reaction?
Which condition can occur if prompt treatment with epinephrine is not administered during a severe allergic reaction?
What is the primary effect of the clumping of high-affinity IgE receptors on mast cell surfaces?
What is the primary effect of the clumping of high-affinity IgE receptors on mast cell surfaces?
Which immune cells have the high-affinity IgE receptor involved in mediating allergic responses?
Which immune cells have the high-affinity IgE receptor involved in mediating allergic responses?
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