In human beings, ventilation includes a coordinated hard work of quite a few muscles and structures to move air into and out in the lungs. The primary muscle mass driving this process is the diaphragm, a dome-formed muscle at the base of your lungs, separating the chest and abdominal cavities. https://ventilation-ductwork89001.dreamyblogs.com/37810676/ventilation-no-further-a-mystery