| 释义 |
DictionarySeealveoluspulmonary alveolus
pul·mo·nar·y al·ve·o·lusa 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 cells (1) , air vesicles, alveoli pulmonis, alveolus (1) , bronchic cellspulmonary alveolusAny of the terminal epithelial sacs of an alveolar duct where gases are exchanged in respiration. It is informally called an “air sac.” Synonym: alveolar sacSee also: alveolus |