Air flows into the lungs of mammals during inhalation because the

Question

Quizplus · Accepted Answer

When the diaphragm and external intercostal muscles contract, they cause the volume of the thoracic cavity to increase. This increase in volume leads to a decrease in pressure within the thoracic cavity, including the lungs. Since air moves from areas of higher pressure to areas of lower pressure, this decrease in pressure causes air to flow into the lungs. Therefore, the pressure in the lungs falls below atmospheric pressure during inhalation.

Air Flows into the Lungs of Mammals During Inhalation Because