BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPH NODES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An acute allergic reaction to an antigen (e.g., a bee sting) to which the body has become hypersensitive.
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acquired immunodeficiency syndrome
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allergen
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antibiotics
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anaphylaxis
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Explanation:
Detailed explanation-1: -Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. An allergen is a substance that can cause an allergic reaction. After being exposed to a substance such as bee sting venom, the person’s immune system becomes sensitized to it.
Detailed explanation-2: -Type I hypersensitivity is also known as an immediate reaction and involves immunoglobulin E (IgE) mediated release of antibodies against the soluble antigen. This results in mast cell degranulation and release of histamine and other inflammatory mediators.
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