how the oxygen is transported to the cells from the alveoli?
Answers
Answered by
50
Inhaled oxygen enters the lungs and reaches the alveoli. The layers of cells lining the alveoli and the surrounding capillaries are each only one cell thick and are in very close contact with each other. ... Oxygen passes quickly through this air-blood barrier into the blood in the capillaries.
Answered by
18
Answer:
The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion.
The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.
When oxygen passes into the bloodstream, carbon dioxide leaves it.
Similar questions