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.

Air gets drawn into our lungs (inhalation) by the intercostal muscles contracting causing the ribs to move up and out. At the same time, the diaphragm contracts and pulls down. This causes the ...

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 ...

Air will instantly be pulled in to fill the space. The muscle that’s mostly responsible for your breathing is your diaphragm. Your intercostal muscles also help. You’ve probably heard of the ...