Antibody - act against foreign bodies. They are proteins which are specific to the antigen, Antigen - is a molecule that triggers off an immune response. Most antigens are proteins., Leukocyte - The scientific word for white blood cells (lymphocytes and phagocytes), Eurythrocyte - the scientific word for red blood cells, Phagocytes - bind to the antibodies of the pathogen and engulf it, then digest it, Antigen presentation - happens when phagocytes, engulf the pathogen and cut out and present their antigens on the surface on their membrane., Inflammation - happens if there is tissue damage, Histamine - is a chemical which causes blood vessels to dilate, and become ‘leaky’, Any cuts in the skin - are closed by blood clotting due to plasma proteins and platelets., Self antigens - is a molecule found on your body cell membranes. They are used in cell to cell recognition and do not trigger an immune response in your body.,

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