Keywords: B cell activation.svg en When a B cell encounters its triggering antigen it gives rise to many large cells known as plasma cells Every plasma cell is essentially a factory for producing an antibody Each of the plasma cells descended from a given B cell manufactures millions of identical antibody molecules and pours them into the bloodstream 100px<br/>http //www niaid nih gov/publications/immune/the_immune_system pdf The Immune System pdf Fred the Oyster<br/> v 2014-10-24 PD-USGov <gallery> B cell activation - ru svg Russian / Ρ ΡΡΡΠΊΠΈΠΉ B cell activation gl svg Galician / Galego </gallery> Cell diagrams Lymphocytes Images created by Fred the Oyster SVG diagrams Cc-zero |