There are Approximately ________________ Alveoli in the Adult Human Lung

Question

There are approximately ________________ alveoli in the adult human lung.
A) 500,000
B) 50 million
C) 500 million
D) 300,000
E) 300 million

Accepted Answer

The adult human lung has approximately 300 million alveoli, which are responsible for gas exchange between the lungs and the bloodstream.