The Gas Exchange Function of the Respiratory System Occurs in the Alveoli

Question

The gas exchange function of the respiratory system occurs in the alveoli.

Accepted Answer

The alveoli are tiny air sacs located in the lungs where gas exchange occurs between the respiratory system and the circulatory system. Oxygen is absorbed from the air and transferred into the bloodstream, while carbon dioxide is removed from the bloodstream and released into the air in the alveoli.