STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Microglial white blood cells. Coloured scanning electron micrograph (SEM) of microglial cells. Microglia are phagocytic macrophage white blood cells that are the main form of immune system in the central nervous system (CNS). Magnification: x2100 when printed 10 centimetres wide.
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