Red Blood Cells #15
by Science Photo Library
Title
Red Blood Cells #15
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells. They circulate in the blood and also remove carbon dioxide to the lungs for exhalation. Their red colour is due to the oxygen-carrying protein haemoglobin. Red blood cells, the most abundant cell in the blood, have no nucleus and are about 7 micrometres across. Magnification: x5500 when printed at 10 centimetres across.
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July 25th, 2016
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