ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Macrophage engulfing bacteria. Computer artwork of a macrophage white blood cell (centre) engulfing (phagocytosing) bacteria (orange). Macrophages are white blood cells which attack foreign organisms (pathogens) in the body, such as these bacteria. The pathogens are broken down and destroyed once they have been engulfed, and the remaining parts are ejected (far right) by the cell.
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