Phagocytosis. False-colour scanning electron micrograph (SEM) of a macrophage (white, yellow) engulfing a red blood cell in the liver. Hepatic macrophages, also known as stellate cells of von Kupffer, are mostly found in the venous blood vessels of the liver and are responsible for the destruction of cellular debris, bacteria, foreign bodies and aged red blood cells. Macrophages form part of the reticulo-endothelial system, also known as mononuclear phagocyte sytem, which includes all those cells and tissues with well- marked phagocytic properties. Magnification: x4500 at 6x7cm size x6300 at 4x5 "~LANDSCAPE"