OMIKRON / SCIENCE PHOTO LIBRARY OMIKRON / SCIENCE PHOTO LIBRARY
The white blood cell has engulfed, by the process of phagocytosis, a long bacterium visible at center (purple) Through phagocytosis, certain white blood cells and macrophages of the immune system are able to ingest and digest foreign particles such as bacteria that may cause harm to the body. Magnification: x1700 at 10 centimetres wide.
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