The Immune System - Pioneers

Duality of the Immune System. Humoral Immunity ( Antibody-Mediated) involves the production of . antibodies. to act against foreign substances. Antibodies are found in extracellular fluids: blood, lymph, mucus secretions. Defends against : bacteria, bacterial toxins, freely circulating viruses. B-cells (lymphocytes) – produce antibodies. Cell ... ................
................