Gas Exchange Occurs Within the Minute Air Sacs of the Lungs

Question

Gas exchange occurs within the minute air sacs of the lungs called
A) alveoli.
B) trachea.
C) bronchi.
D) terminal bronchioles.

Accepted Answer

Gas exchange occurs in the alveoli, which are the tiny air sacs in the lungs where oxygen is exchanged for carbon dioxide in the blood.