The relaxation of the diaphragm and external intercostal muscles results in a(n)
A) increase in lung volume, a decrease in air pressure within the lungs, and inspiration
B) decrease in lung volume, an increase in air pressure within the lungs, and expiration
C) decrease in lung volume, a decrease in air pressure within the lungs, and inspiration
D) increase in lung volume, an increase in air pressure within the lungs, and expiration
E) decrease in lung volume, an increase in air pressure within the lungs, and inspiration

Question

Quizplus · Accepted Answer

The relaxation of the diaphragm and external intercostal muscles decreases lung volume, increases air pressure within the lungs compared to the outside air pressure, and leads to expiration as air is pushed out of the lungs.

The Relaxation of the Diaphragm and External Intercostal Muscles Results