White blood cells

White blood cells

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This image is part of the feature Science Photo Library - September Monthly Focus

Credit: RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY

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Caption: White blood cells. Computer artwork of a B lymphocyte (B cell, blue) and a T lymphocyte (T cell, purple). These white blood cells are part of the immune system. B cells mature in bone marrow and are responsible for humoral immunity; they operate by recognising a specific site on the surface of a pathogen or foreign object (antigen), which they bind to before producing antibodies to destroy that antigen. T cells mature in the thymus and are involved in cell-mediated immunity, which does not rely on antibodies to fight antigens, but rather the activation of other immune cells. Interaction between B and T cells can increase B cell antibody production.

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Keywords: activating, anatomy, antibody, artwork, b cell, b lymphocyte, biological, biology, cell-mediated immunity, cells, communicating, computer artwork, defence, duo, human body, humoral immunity, illustration, immune, immunology, lymphocyte, pair, receptor, receptors, t cell, t lymphocyte, t-cell dependant activation, two, wbc, wbcs, white blood cell

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