The adaptive defense system consists of two main arms: humoral immunity and cell-mediated immunity. Humoral immunity is characterized by the production of antibodies by B cells, which target and neutralize pathogens in the body fluids. In contrast, cell-mediated immunity involves T cells that directly attack infected or cancerous cells and orchestrate the immune response. Together, these two arms provide a tailored defense against specific pathogens and ensure long-lasting immunity through memory cells.
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