Aortic valve (top),coloured scanning electron micrograph (SEM). The aortic valve prevents the back flow of blood from the aorta (the body's main artery) to the left ventricle of the heart | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nishinaga, Susumu |
Bildgröße: | 5377 px × 3250 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |