In individuals, ventilation entails a coordinated effort and hard work of numerous muscles and buildings to move air into and out on the lungs. The first muscle driving this process could be the diaphragm, a dome-shaped muscle at the base with the lungs, separating the upper body and abdominal cavities. https://ventilationductwork01222.blog-mall.com/38198746/how-ventilation-ductwork-can-save-you-time-stress-and-money