False-colour scanning electron micrograph (SEM) of red blood cells (erythrocytes) densely packed into a capillary,the smallest type of blood vessel. Capillaries are made up exclusively of endothelial cells. Erythrocytes are essentially non-motile bags of haemoglobin; their biconcave shape is an adaptation for maximum surface area over which the exchange of oxygen & carbon dioxide can occur. They are flexible,& can accommodate themselves to the smallest capillaries. Magnification: x1200 at 6x7cm size,x600 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Photo Insolite Realite |
Bildgröße: | 4370 px × 4212 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |