Oxygen enters the bloodstream and carbon dioxide leaves it.
When someone breaths in, they breath in oxygen which is carried around the body. Then when they breath out, they breath out carbon dioxide.
In the lungs, you have alveoli (grape like structures at the ends of the bronchioles) which are only one cell thick. This is where the gas exchange takes place.
Because there is oxygen in the alveoli and not in the blood stream, the oxygen diffuses across the wall of the alveoli and into the blood.
Blood saturated with CO2 runs from the body to the heart, to the lungs, where it passes through membranes in the 'alveoli'. Here it deposits the CO2 and uptakes O2 from the air you just breathed in. It then goes back to the heart and out to the rest of the body, muscles etc use up the O2 and back it comes, loaded with CO2
leon marcus-LEO FLATLINER
respiration
by the aveoli exchange gases.The aveoli are inside the lungs
Through the alveoli
stomach
In the lungs, exchange of gases occurs in the alveoli(sing: alveolus).
During the stage of photosynthesis, the exchange of gases occur in the leaves.
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.
YES
Two main gases exchange in the lungs: oxygen and carbon dioxide.
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.
Gas exchange between the body and the environment occurs in the lungs.
The heart is not where gases are exchanged. This occurs in the lungs.
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].
oxygen and carbon dioxide
carbon monoxide and oxygen
Basically, the lungs exchange inwards of oxygen for outwards of waste gases.