Blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes) and white blood cells (leucocytes). The main function of red blood cells is to distribute oxygen to body tissues and to carry waste carbon dioxide back to the lungs. White blood cells are part of the body's immune system and fight invading pathogens | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Oeggerli, Martin |
Bildgröße: | 5120 px × 3413 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |