Macrophages, B-cells, pathogens, Antibody Immune Response

This animation talks about the body’s Humoral immunity and Cell mediated immunity. It shows how the pathogens will only react to the B cells that have the specific receptors for it. B cells are lymphocytes that are derived from the bone marrow and they are readily available to help fight off infection. The Antigen Presenting Cell (APC) of the macrophage react with the receptors of the Helper T cells which then activates the Helper T cells and then work with activated B cells. The helper T cells activate B cells which triggers B cells to rapidly reproduce more B cells which become either plasma cells or memory B cells which will be ready to respond again if exposed to the same pathogen. Plasma cells produce antibodies which docks onto pathogens to mark for destruction.