Red and white blood cells,coloured scanning electron micrograph (SEM). Polymorphonuclear white blood cell (leucocyte) surrounded by red blood cells (erythrocytes). Red blood cells are biconcave,disc-shaped cells that transport oxygen throughout the body. Polymorphonuclear leucocytes are any of several types of white blood cells produced in the bone marrow,which form 70% of human white blood cells. They play an important role in the immune system,migrating to areas of tissue damage and engulfing foreign bodies such as bacteria. Magnification unknown | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nikas, Dr. Yorgos |
Bildgröße: | 4500 px × 3390 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |