What is the Respiratory Zone of the Lungs?

The respiratory zone of the lungs is the region where gas exchange occurs between the air we breathe in and the blood in our capillaries. This zone includes the respiratory bronchioles, alveolar ducts, and alveoli. The alveoli are tiny air sacs where oxygen from the air diffuses into the blood and carbon dioxide from the blood diffuses into the air to be exhaled. This exchange of gases is essential for the body to obtain oxygen for cellular respiration and to remove waste carbon dioxide. The respiratory zone is where the actual process of respiration takes place, allowing the body to maintain proper oxygen levels and remove waste products efficiently.