Open heart surgery,showing the implantation of an artificial heart valve made from a pig's dura mater,the tough outer membrane of the brain. The valve is tricuspid,meaning it has three "leaflets": blood flows through the valve from the front,but will not be allowed to return when back pressure forces the leaflets shut. The artificial valve (left) is about to be implanted | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Leah, David |
Bildgröße: | 5164 px × 3455 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |