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White blood cells and platelets
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White blood cells and platelets
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
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6446559
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Blood Cell Immune Leucocyte Leukocyte Platelet Thrombocyte White Blood White Blood Cell Cells
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