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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nishinaga, Susumu |
Taille de l’image : | 5377 px × 3250 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |