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Medical Term:

alveolar period of lung development

 

Definition: the period (32 weeks after fertilization–8 years) when the epithelial lining of the terminal saccules is extremely thin so that capillaries bulge into them; characteristic mature alveoli do not form until after birth.

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