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: x3400 when printed at 10 centimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Power And Syred |
Taille de l’image : | 5687 px × 4266 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |