Which category of adaptive immunity is primarily mediated by T lymphocytes?

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Multiple Choice

Which category of adaptive immunity is primarily mediated by T lymphocytes?

T lymphocytes drive the cell-mediated arm of adaptive immunity. In this pathway, cytotoxic T cells (CD8+) directly attack and destroy virus-infected or abnormal cells, while helper T cells (CD4+) secrete cytokines to activate and coordinate other immune cells, including macrophages and B cells. By contrast, antibody production by B cells defines humoral immunity, which is the other adaptive arm. Innate immunity is non-specific and not driven by T cells, and autoimmunity refers to immune responses against self rather than a functional category of adaptive immunity.

T lymphocytes drive the cell-mediated arm of adaptive immunity. In this pathway, cytotoxic T cells (CD8+) directly attack and destroy virus-infected or abnormal cells, while helper T cells (CD4+) secrete cytokines to activate and coordinate other immune cells, including macrophages and B cells. By contrast, antibody production by B cells defines humoral immunity, which is the other adaptive arm. Innate immunity is non-specific and not driven by T cells, and autoimmunity refers to immune responses against self rather than a functional category of adaptive immunity.

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