In human beings, ventilation includes a coordinated hard work of quite a few muscles and buildings to maneuver air into and out in the lungs. The main muscle driving this method is definitely the diaphragm, a dome-shaped muscle at the base on the lungs, separating the chest and abdominal cavities. https://zionjcazr.dailyblogzz.com/38157776/the-best-side-of-ventilation-installation