The Humoral Immune Response (HIR) is the aspect of immunity that is mediated by secreted antibodies, produced in the cells of the B lymphocyte lineage (B cell). Secreted antibodies bind to antigens on the surfaces of invading microbes (such as viruses or bacteria), which flags them for destruction. Humoral immunity is called as such, because it involves substances found in the humours, or body fluids.
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Humoral immunity n. The component of the immune response involving the transformation of B cells into plasma cells that produce and secrete [more]Humoral immunity - Community and Resources