Carbon dioxide leaves the blood and goes into the alveoli where it can then be breathed out of the body. It is also at this point that oxygen passes into the blood to be carried to where it is required for respiration - carbon dioxide being a by-product of respiration.
Gases are exchanged in the aveoli where oxygen goes in the blood stream while carbon dioxide goes in the aveoli.
how does the exchange of gasses between the aveoli and blood happen
aveoli sac
Oxygen
carbon dioxide
oxygen
carbon dioxide
carbon dioxide
carbon dioxide
Gas exchange.
To get inhaled air to the alveoi for gas exchange
Frizzophigus