Vein valve. Computer illustration of a section through a vein, showing a closed valve (centre) and the layers that make up the vein's wall: (from outside in) adventitia, smooth muscle, basement membrane, endothelium. Veins contain valves to prevent blood from flowing back in the wrong direction. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Jensen, Mikkel Juul |
Bildgröße: | 6210 px × 4658 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |