What does a large number of air sacs in the lungs make?

Asked by arwen46 12 years ago 4/13/2013 12:14 PM

Last updated by anonymous 12 years ago 4/14/2013 10:29 PM

Answered by Dr. John Carmen 12 years ago 4/14/2013 10:29 PM

The large number of air sacs in the lungs make an enormous surface area.