Final answer:
True, inspiration occurs when alveolar pressure is less than atmospheric pressure due to the air flowing down the pressure gradient into the lungs until pressures equalize, in accordance with Boyle's Law.
Step-by-step explanation:
The question asks whether inspiration will occur if alveolar pressure is less than atmospheric pressure. The answer to this question is True. Inhalation occurs when the pressure within the alveoli, which is the intra-alveolar pressure, drops below the atmospheric pressure. The decrease in intra-alveolar pressure is due to an increase in lung volume as the chest expands and the diaphragm moves downward. This change in volume and pressure is explained by Boyle's Law, which states that pressure of a gas decreases as the volume of the container increases. As the intra-alveolar pressure drops below atmospheric pressure, air will flow into the lungs down the pressure gradient until the pressures equalize, resulting in inspiration.
The correct answer is A. True.
If the alveolar pressure is less than atmospheric pressure, it means that the pressure inside the alveoli is lower than the pressure outside the body. In this case, air flows into the lungs, resulting in inspiration. This pressure difference between the intra-alveolar pressure and atmospheric pressure drives pulmonary ventilation and allows for the exchange of gases in the lungs.