Red blood cells, SEM
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Red blood cells, SEM
Red blood cells. 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 nucleus and other organelles are lost as the cells mature. The cells interior is packed with haemoglobin, a red iron-containing pigment that has an oxygen-carrying capacity. 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: x4500 when printed at 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6318077
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Biconcave Blood Colored Erythrocyte Erythrocytes Haematology Haemoglobin Hematology Hemoglobin Rbcs Red Blood Cell Yellow Background Cells False Coloured
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