Question

is alveoli have thin walls and a large surface area helps oxygen to be absorbed rapidly into the blood in the lungs?

Answer 1

Answer:

Alveoli have a thickness of less than 1mm and surface area of 100msq

Answer 2

Answer:

Explanation:

Large surface area: human lungs contain about 500 million alveoli, which creates a surface area around half the size of a tennis court. This speeds up diffusion because gases have more area over which to diffuse.