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White blood cells and platelets

White blood cells and platelets

P248/0204

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12.2 MB (938.1 KB compressed)

2391 x 1782 pixels

20.3 x 15.0 cm ⏐ 8.0 x 5.9 in (300dpi)

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Credit

STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY

Caption

White blood cells & platelets. Coloured scanning electron micrograph (SEM) of a group of white blood cells (leucocytes) and activated platelets in human blood. The larger rounded white blood cells (coloured brown) play a role in the immune response of the body. At centre and far left are smaller platelets (thrombocytes, coloured purple). Platelets are non-nucleated cells found in large numbers in the blood. When inactive they are round or oval discs; activated they have dendritic processes, or pseudopodia (as seen here), and they may become star-shaped. When activated, platelets clump together and are involved in blood clotting. Magnification: unknown.

Release details

Model release not required. Property release not required.

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