Anaphylaxis is the term for reactions caused when certain antigens combine with

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Anaphylaxis is a type 1 hypersensitivity reaction that occurs when an antigen combines with IgE antibodies, which are bound to mast cells and basophils. This binding triggers the release of histamine and other inflammatory mediators, leading to a range of symptoms such as hives, swelling, and potentially life-threatening respiratory and cardiovascular symptoms. The other options (B-D) are not directly involved in the mechanism of anaphylaxis.

Anaphylaxis Is the Term for Reactions Caused When Certain Antigens