As the Volume in the Alveoli Increases, the Pressure Decreases

Question

As the volume in the alveoli increases, the pressure decreases.

Accepted Answer

This is known as Boyle's Law, which states that as the volume of a container increases, the pressure inside the container decreases. In this case, the alveoli are the containers and as they expand during inhalation, the pressure decreases allowing air to flow in.