D. PHILLIPS / SCIENCE PHOTO LIBRARY D. PHILLIPS / SCIENCE PHOTO LIBRARY
Macrophage. Coloured scanning electron micrograph (SEM) of a migrating macrophage (blue and green), found in lung tissue. Macrophages form part of the reticulo-endothelial system, also known as mononuclear phagocyte system, which includes all those cells and tissues with well-marked phagocytic properties. Macrophages are capable of engulfing and digesting cellular debris, bacteria, foreign bodies and aged red cells. Their shape is irregular and characterised by projections (filopodia) which are used by the macrophages as a support. Magnification: x10,600 at 6x7cm size, x5300 at 35mm size.
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