what is the point of alveoli
TRANSCRIPT
Do we need alveoli?
The volume of a spherical lung is 3 dm3 and the radius is 89mm. What is the surface area?
The radius of one alveoli is 0.25mm what is the surface area and volume?
How many alveoli will fit into two spherical lungs?
What is the surface area of alveoli that will fit into two spherical lungs?
...Compare the two.
So.... What is the point of alveoli?