VSHYUKOVA / SCIENCE PHOTO LIBRARY VSHYUKOVA / SCIENCE PHOTO LIBRARY
Dendritic cells. Fluorescence light micrograph of dendritic cells, a cell type found in the human immune system. Dendritic cells are a type of macrophage, and one of their functions is to recognise and engulf foreign cells in a process that is called phagocytosis. The dendritic cells have been stained to show cellular proteins, antigens and other biological markers (red and green).
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