Question

if the alveoli is thick layer ( contain 3 layer ) so its mean diffusion is leas t there:-

Answer 1

Answer:

From the alveoli, the oxygen from the air you breathe enters your blood in nearby blood vessels. This is a process called oxygen diffusion. ... Another form of diffusion occurs when blood containing carbon dioxide travels back to your lungs. The carbon dioxide moves from your blood to your alveoli.