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Red blood cell. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a larg Image details File size:
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4550 x 3923 px | 38.5 x 33.2 cm | 15.2 x 13.1 inches | 300dpi
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Red blood cell. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels. The main function of red blood cells is to distribute oxygen to body tissues and to carry waste carbon dioxide back to the lungs. Magnification: x7500 when printed at 10 centimetres wide.
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Similar stock images Activated platelets, coloured scanning electron micrograph (SEM). Platelets are blood cell fragments that play an essential role in blood clotting and wound repair, and can also activate certain immune responses. They are formed in the red bone marrow, lungs, and spleen by fragmentation of very large cells known as megakaryocytes. Platelets in the blood are small oval disks and are termed non-activated platelets or thrombocytes. They are the body's first line of defence against excessive blood loss. Magnification: x2,000 at 10 cm wide. 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Magnification: x5000 when printed 10 centimetres high. Stock Photo https://www.alamy.com/licenses-and-pricing/?v=1 https://www.alamy.com/blood-cells-coloured-scanning-electron-micrograph-sem-of-human-red-blood-cells-erythrocytes-red-white-blood-cells-leukocytes-blue-and-cyan-and-platelets-thrombocytes-yellow-the-disc-shaped-biconcave-erythrocytes-transport-oxygen-to-the-bodys-cells-and-remove-carbon-dioxide-to-the-lungs-leukocytes-are-part-of-the-immune-system-defending-the-body-against-infection-by-ingesting-pathogens-by-phagocytosis-or-by-producing-antibodies-magnification-x5000-when-printed-10-centimetres-high-image220702013.html RF PR1RJN – Blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes, red), white blood cells (leukocytes, blue and cyan), and platelets (thrombocytes, yellow). The disc-shaped, biconcave erythrocytes transport oxygen to the body's cells and remove carbon dioxide to the lungs. Leukocytes are part of the immune system, defending the body against infection by ingesting pathogens by phagocytosis or by producing antibodies. Magnification: x5000 when printed 10 centimetres high. 
