Which type of white blood cells release histamine during an anaphylactic reaction?


• During an allergic or anaphylactic reaction, basophils release histamine, leading to vasodilation, increased capillary permeability, and bronchospasm.

• Neutrophils defend against bacteria and fungi and produce relatively small inflammatory responses as first responders.

• Lymphocytes defend against viral infections and do not release histamine during an allergic reaction.

• Eosinophils primarily defend against parasitic infections and are important in allergic responses. However, they primarily release interleukin, not histamine.

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