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pulmonary alveolus

 

Definition: a thin-walled saclike terminal dilation of the respiratory bronchioles, alveolar ducts, and alveolar sacs across which gas exchange occurs between alveolar air and the pulmonary capillaries.

Synonym(s): air cells1, air vesicles, alveoli pulmonis, alveolus1, bronchic cells

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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