the pleural sac or pleural membrane maintains the negative pressure that is in your lungs. negative pressure inside the lungs is very important since it allows atmospheric air to enter your lungs each time you inhale, much like a suction. the pleural sac also allows your lungs to expand easily since it contains a lubricant called pleural fluid.
The pleura is lubricating fluid that keeps everything running smoothly.
Pleura
Oblock
lungs is a thing
Human lungs provide an exchange of gases. The closest thing to it in cells is the cellular membrane, which allows some gas to pass into the cell, and others, to go out.
Everything that surrounds a living thing makes up its environment.
Hi there,The most important thing about your lungs is that without them, you wouldn't be able to breathe
Yes they are the same.
it helps us know the thing that surrounds us
streets
Habitat.
Your lungs give you the gift to breathe.
ribs
I believe it is called the headlight bezel.
in plants, a cell wall. ( animal cells do not have cell walls.)