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Coloured SEM of B-lymphocyte white blood cells

Coloured SEM of B-lymphocyte white blood cells

P248/0170

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27.7 MB (1.7 MB compressed)

3666 x 2642 pixels

31.0 x 22.4 cm ⏐ 12.2 x 8.8 in (300dpi)

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Credit

CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY

Caption

B-lymphocyte. Coloured Scanning Electron Microgr- aph of a group of B-lymphocyte white blood cells. The cell surfaces are covered with tiny ridges and projections called microvilli, which help it bind to target proteins. B-cells account for 10% of the body's lymphocytes. On encountering a foreign antigen, such as a bacterial surface protein, the immature B-cell either divides into a number of plasma cells, which produce antibodies that kill the invader, or it matures into a memory cell. Memory cells remain in the body for years, giving immunity to the original pathogen. Magnification x2000 at 6x7cm size.

Release details

Model release not required. Property release not required.

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