There are approximately 300 million alveolar sacs in the human body. The range in size from 70-300um(micro meters) in Diameter.
The alveolis.
The alveolis.
Alveoli alveoli - air sacs in your lungs
alveoli. they are the basic functional unit of the lungs. it is where gas exchange occurs.
alveoli
In the alveoli - the minute sacs at the ends of the branches.
adult got more air sacs than children because there lungs are bigger than children so the air sacs have to fit in the adult's lungs
Because it is
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
Not sure have no clue
It is to increase the surface area of the lungs so that more oxyen can be taken in.