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False-colour TEM of a human lymphocyte

False-colour TEM of a human lymphocyte

P248/0088

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51.1 MB (6.1 MB compressed)

4722 x 3780 pixels

39.9 x 32.0 cm ⏐ 15.7 x 12.6 in (300dpi)

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Credit

CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY

Caption

False-colour transmission electron micrograph (TEM) of a lymphocyte, a type of white blood cell involved in the body's specific immune response. There are two main types of lymphocytes; T-cells and B-cells. T-cells (thymus-derived) give rise to a cell-mediated response, tracking down and destroying antigens directly (as cytotoxic or killer T-cells) or through summoning & directing the scavenging macrophages. B-cells (bone marrow derived) mount the humoral immune response through the secretion of antigen-specific antibodies. The blue body dominating this cell is the nucleus, containing a pink nucleolus and chromatin coloured orange. Magnification: x5400 at 6x7cm size.

Release details

Model release not required. Property release not required.

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