True or False: During inhalation, negative pressure draws air into the lungs.

The statement is true because during inhalation, the process of drawing air into the lungs is driven by the creation of negative pressure within the thoracic cavity. When the diaphragm contracts and moves downward, and the intercostal muscles expand the rib cage, the volume of the thoracic cavity increases. According to Boyle's Law, when the volume of a container increases, the pressure inside that container decreases. This drop in pressure within the lungs compared to the atmospheric pressure outside results in air being drawn into the lungs.

This mechanism is essential for normal breathing and is a critical aspect of respiration. The creation of negative pressure is what allows air to flow in, demonstrating how the respiratory system is designed to facilitate efficient gas exchange.