During Inspiration, When the Volume of the Lungs Increases, _______

Question

During inspiration, when the volume of the lungs increases, _______.
A) air moves out of the lungs
B) oxygen moves out of the lungs
C) air moves into the lungs
D) air pressure in the lungs increases

Accepted Answer

During inspiration, the diaphragm and intercostal muscles contract, causing the chest cavity to increase in volume. This increase in volume causes a decrease in pressure within the lungs, allowing air to flow in and fill the expanded space. Therefore, air moves into the lungs during inspiration.