The heart is a muscular organ made up of four chambers; its regular rhythmic contractions pump and circulate blood. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / QA International |
Taille de l’image : | 2412 px × 2958 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |