Illustration showing the appearance of damaged alveoli due to emphysema,a condition often caused by smoking tobacco. Alveoli are the small air sacs at the end of the respiratory tree (in the lungs). Long term exposure to compounds found in cigarette smoke (such as carbon monoxide and cyanide) are believed to be responsible for loss of elasticity in the alveoli | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Schroeder, Monica |
Taille de l’image : | 1638 px × 1267 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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