The force that causes air to move into the lungs during inspiration is supplied by
A) the diaphragm.
B) the abdominal muscles.
C) external intercostal muscles.
D) atmospheric pressure.
E) scalene muscles.

Question

Quizplus · Accepted Answer

Atmospheric pressure is the force that drives air into the lungs during inspiration, as the diaphragm and intercostal muscles create a pressure difference by expanding the thoracic cavity.

The Force That Causes Air to Move into the Lungs