Red and white blood cells. Coloured scanning electron micrograph (SEM) showing two types of cells found in human blood. Red blood cells (or erythrocytes,red) and a white blood cell (or leucocyte,white) can be seen. Red blood cells are biconcave disc-shaped cells which transport oxygen around the body. Their red colour comes from the oxygen-carrying protein haemoglobin. The white blood cell is roughly spherical with microvilli projecting from its surface. White blood cells are part of the body's immune system,which protects against infections. Magnification: x2313 at 6x7cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Power And Syred |
Bildgröße: | 3500 px × 2435 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |