DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Brightfield light micrograph of tissue macrophage phagocytosis of E. coli. Note the macrophage has short lamellopodia that extend from the cell and aid in finding bacteria for phagocytosis. A tissue macrophage is a large, mature phagocyte that can ingest and destroy invading microbes, foreign particles, cancerous or diseased cells and cellular debris. Tissue macrophages are produced by the differentiation of monocytes. Magnification: x400 when shortest axis printed at 25 millimetres.
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