AMI IMAGES / SCIENCE PHOTO LIBRARY AMI IMAGES / SCIENCE PHOTO LIBRARY
Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes). These cells are carriers of oxygen and carbon dioxide. Their biconcave surface provides maximum surface area for the exchange of gases. Magnification: x5300 when printed 10 centimetres wide.
Model release not required. Property release not required.