A typical adult human lung contains about 300 million tiny cavities called alveoli.
Estimate the average diameter of a single alveolus.
To estimate the average diameter of a single alveolus, we can use the information that a typical adult human lung contains about 300 million alveoli.
Since alveoli are microscopic structures, they are not easily measured directly. However, there have been studies that provide estimates of the size range of alveoli.
One study published in the Journal of Applied Physiology measured the size of alveoli in human subjects using a technique called stereology. It found that the average diameter of alveoli ranged from about 200 to 300 micrometers.
Thus, based on this study, we can estimate that the average diameter of a single alveolus is around 200 to 300 micrometers. This estimate may vary depending on factors such as age, lung health, and individual variations among individuals.
Keep in mind that this estimate is based on scientific studies, and the precise size of alveoli can vary among individuals. Nonetheless, it provides a rough approximation of the average diameter of a single alveolus.