Question

Describe how the ventilation of the lungs will change while the athlete exercise:

Answer 1

When the air is expelled, the volume of the lung decreases as air is forced out of the lungs. With every breath, air is moved into the lungs and oxygen and carbon dioxide are exchanged. During exercise, muscles work harder and body uses more oxygen and produces more carbon dioxide. During exercise the demand for oxygen increases because oxygen is needed to burn calories more efficiently. Since the blood picks up oxygen in the lungs, and the demand for oxygen increases so the lungs must work harder. With a faster breathing rate, more oxygen is picked up at the lungs for delivery to the working muscles.