Blood clots. Coloured scanning electron micrograph (SEM) of small blood clots (red) in a blood vessel. The clots consist of red blood cells,white blood cells,and platelets,all trapped in a mesh of fibrin. The clotting process is started by the platelets. A blood clot forms naturally in response to damage to a blood vessel,but abnormal blood clots can cause strokes and heart attacks | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4961 px × 3687 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |