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Digitised-colour SEM of red blood cells

Digitised-colour SEM of red blood cells

P242/0163

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Credit

ROBERT BECKER / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY ROBERT BECKER / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY

Caption

Digitised-colour scanning electron micrograph (SEM) of human red blood cells (erythrocytes). The principal function of erythrocytes is the distribution and transport of oxygen and carbon dioxide around the body. The cells are biconcave in shape, an adaptation which provides the maximum surface area for the exchange of gases; and highly elastic, enabling them to pass through the narrow capillary vessels. The interior of the cell is packed with haemoglobin, a red iron-containing pigment which has an efficient oxygen carrying capacity. The nucleus and other organelles are lost as the cell matures.

Release details

Model release not required. Property release not required.

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