answersLogoWhite

0

Birds also have lungs but each lung also has two air sacs. Each lung has a posterios and anterior airsac. The air flows through the lung into the posterior air sac where it is stored. The air then moves through thr lung from the posterior air sac and enters the anterior sac. The used air is then exhaled.

User Avatar

Wiki User

16y ago

What else can I help you with?