systole, illustration. Coronal view of heart with mitral and tricuspid valves closed, aortic valve open and ventricles contracted. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sue Seif |
Taille de l’image : | 2916 px × 3500 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |