carbon dioxide goes out and oxygen comes in
oxygen and carbon dioxide
Oxygen and carbon dioxide in the alceoliCO2 and O2
The air that you inhale is held in the lungs and the oxygen is absorbed into the blood through the alveoli-capillary interface. This means that there is an exchange of gases across two membranes - taking in oxygen into the capillary and attachment of oxygen to the carrier protein, while detachment of carbon dioxide from the carrier protein and expelling it into the lungs. Most of the other gases cannot be exchanged similarly, and are just held in the lungs until expulsion.
During the breathing process, the two gases exchanged are oxygen and carbon dioxide. Oxygen is inhaled into the lungs and then transferred into the bloodstream, while carbon dioxide is carried from the bloodstream into the lungs to be exhaled.
O2 and CO2
Oxygen and carbon dioxide are exchanged by way of the circulatory system. Cells use oxygen for energy and produce carbon dioxide as a waste. Capillaries are where this exchange occurs. Veins carry this product back to the heart. This blood goes to the lungs were you blow off the carbon dioxide and take in oxygen. So the circulatory system and lungs work together to exchange gases.
lungs and mouth
o2 co2
i guess lungs and gills. gills at the earlier stage and lungs at the maturity.
Two main gases exchange in the lungs: oxygen and carbon dioxide.
oxygen + carbon dioxide
Your nose and lungs...