Lung alveoli. Coloured scanning electron micrograph (SEM) of alveoli (air spaces) in the lungs. Alveoli are the smallest divisions of the airways in the lungs,and are the sites of gaseous exchange. Here,oxygen is taken up by the blood from inhaled air,and carbon dioxide is released to be exhaled | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nishinaga, Susumu |
Taille de l’image : | 2894 px × 3858 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |