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It is at the level of the pulmonary alveoli, small sacs located in the lungs, that the gas exchanges essential to the functioning of the body take place. The oxygen in the air is absorbed by the blood before being transported to the cells, while the carbon dioxide released by the cells passes through before being expelled to the outside of the body. Inhale! Exhale! Film directed by Damien Milcent taken from the Corpus website. With the support of the investment for the future (Estim). Duration: 3 min. 40 sec. Find all our films on http://www.serimedis.inserm.fr