Final answer:
Boyle's Law states that pressure and volume are inversely related. This law explains how changes in lung volume affect pressure during inhalation and exhalation.
Step-by-step explanation:
Boyle's Law is the gas law that states that in a closed space, pressure and volume are inversely related. This law helps to explain the mechanics of breathing. When you inhale, your diaphragm and intercostal muscles contract, expanding your chest cavity and increasing lung volume. This increase in volume leads to a decrease in pressure, causing air to flow into the lungs. When you exhale, the process reverses: your diaphragm and rib muscles relax, chest cavity contracts, and lung volume decreases, causing the pressure to increase and air to flow out of the lungs.