A completed artificial heart valve made from a natural substance called dura mater,which forms the outer of the three connective tissue layers making up the meninges. The meninges lines & encloses the skull & spinal cord | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Leah, David |
Taille de l’image : | 5113 px × 3425 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |