The alveoli are adapted to provide a very large surface area

Last updated: 5/13/2023

The alveoli are adapted to provide a very large surface area for each alveolus is a um in diameter giving it a larger surface area to volume ratio than larger structures there are around million per lung The total surface area of the alveoli is around 1 706 4 There is also a short diffusion path the walls of blood are just Gases square feet about 300 and I thick The alveoli are also lined with a thin film of ie 350 in this water making the diffusion