35.0 MB (2.3 MB compressed)
3500 x 3500 pixels
29.7 x 29.7 cm ⏐ 11.7 x 11.7 in (300dpi)
RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY
This image may not be used in educational posters.
Macrophage engulfing bacteria. Computer artwork of a macrophage white blood cell (green) engulfing bacteria (gold). This process is called phagocytosis. Macrophages are immune system cells that phagocytose and destroy pathogens, dead cells and cellular debris. After phagocytosis they display fragments of a pathogen's proteins on surface receptors to direct other cells to attack the pathogen.
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