Deep diaphragmatic breathing is a basic exercise that emphasizes the use of the diaphragm, the body's primary muscle for ...

This made your chest cavity bigger. Your intercostal muscles between your ribs tightened up, too. This made your rib cage move up and out. Now breathe out. Your diaphragm loosened up and moved ...

Two important structures for breathing are the intercostal muscles and diaphragm. As these muscles contract, the volume in our chest cavity increases, the inside pressure decreases and air moves in.

The elastic recoil of the lungs provides the necessary acoustic energy, while the diaphragm, intercostal muscles, and abdominal muscles manipulate how that air is released through the larynx, a ...