gaseous exchange in the lungs takes place in the walls of the alveoli which are provided with a rich supply of blood vessels .the partial pressures of the gases .i.e. CO2 and oxygen in the atmosphere and the blood vessel is naturally perfect for the diffusion of gases.
Pulmonary alveolus
lungs
gas exchange occurs between pulmonary capillaries and the alveoli in the lungs.
Between the avioli and the lungs.
Capillaries
respritory system
Gas exchange between the body and the environment occurs in the lungs.
Simply put, the gas exchange occurs in the lungs. More specifically, the blood exchange occurs at the avoli, the "air sacs" in the lungs where the surrounding capillaries can be oxygenated.
The actual sites of gas exchange within the lungs are the alvioli.
The gas exchange that takes place in the lungs are carbon dioxide and oxygen.
The exchange of gases occurs at the ends of the airways in the lungs. Here tiny sacs called alveoli connect with tiny blood vessels and here exhaust gas [carbon dioxide] is exchanged for fresh gas [oxygen].
There are two place where this process occurs: i) the Lungs, and ii) the Capilliaries.
Initially within the alveoli inside the lungs; also between the body's tissue cells and blood