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5 Cards in this Set
- Front
- Back
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Allergens |
Antigens that cause allergies due to hypersensitivity |
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Type 1 Anaphylactic reaction |
Allergen is carried to lymph nodes- B cells activated and proliferate into plasma cells - Produced IgE binds to mast cells - allergen attaches to antibody molecules in master cell - mast cell degranulates and releases mediators. |
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Atopy |
Local allergy (hay fever, skin rash) |
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Anaphylaxis |
Systematic reaction (airway obstruction, sometimes fatal) |
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Effects of histamine |
Constrict smooth muscle of bronchi (labored breathing), dilates blood vessels, increases permeability of blood vessels, and mucus secretion |
