25.0 MB (2.3 MB compressed)
2983 x 2928 pixels
25.1 x 24.9 cm ⏐ 9.9 x 9.8 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
T Lymphocyte, coloured scanning electron micrograph (SEM). T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus. T lymphocytes recognise a specific site on the surface of pathogens or foreign objects (antigens), bind to it, and produce antibodies or cells to eliminate that antigen. Magnification: x12, 000 when printed at 10 centimetres wide.
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