When you breath in and out. : )
Lungs assist the intake and exhalation of air.
Normally, the pressure in the lungs is greater than the pressure in the pleural space surrounding the lungs
fishes are uns
There are no normally resident bacteria or viruses
the lungs
Normally a person has 2 lungs... but its possible to live with just 1
The function of the pleural membrane is to reduce friction in the lungs by creating a liquid to coat the inside of the lungs
No fish breathe through their gills. (simiar organ to lungs yet functions differently)
be the same
heart lungs and skin
Their respiratory system functions through the use of lungs,
This disease is called emphysema. This happens when you breath out and your lungs don't contract like they normally do.