N5315 test 2 Questions and Correct Answers
Cell mediated immunity Ans Active against cells infected with intracellular bacteria or viruses * governed by T cells Humoral immunity Ans specific immunity produced by B cells that produce antibodies that circulate in body fluids * governed by B cells Active acquired immunity Ans develops following direct exposure to an antigen *basis of vaccinations Passive immunity Ans Immunity acquired via the transfer of antibodies, or T cells to the recipient. Ex. Mother to fetus IgA Ans mucosal immunity IgM Ans Produced in a primary immune response. Indicates a recent infection IgG Ans Primary antibody in a secondary response. Crosses the placenta IgD Ans Signals B cell activation IgE Ans allergic reaction
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