Coloured SEM of red blood cells in the liver

Coloured SEM of red blood cells in the liver


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Red blood cells. Coloured scanning electron micro- graph (SEM) of red blood cells (erythrocytes) in the liver. Mature erythrocytes are biconcave in shape. They are seen passing through sinusoids (channels) between liver cells. It is in the liver that blood cells are cleaned of micro-organisms, toxins, aged cells and debris. Erythrocytes contain haemoglobin, a red pigment by which oxygen is transported to tissues around the body. During its short life (about 4 months) a red blood cell covers about 15km every day for a total of 1500km. In a litre of blood there are 5000 billion red blood cells. Magnification: x1,750 at 5x7cm size.

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