-
Birth
At birth, about 95% of future alveoli still have yet to develop. Aeration of lungs occur, removing fluid which had filled half of the lungs -
Period: to
Lifespan
-
Age 8
About 300 million alveoli are present in lungs -
Age 20
Female lungs are fully developed and at peak functioning abilities -
Age 25
By 25, the male lungs are fully matured and at their peak functioning capabilities -
Age 35
Lung function begins to slowly decline. Maximum oxygen capacity decreases by about 1% per year -
Age 50
elastic fibers around alveolar duct begin to degenerate, enlargening the airspaces. Can lead to air trapping and hyperinflation -
Age 70
Lung capacity has decreased by nearly 30%, decline in lung function increases risk of pneumonia, bronchitis, and other pulmonary disorders -
