Gas exchange happens in the capillaries. Oxygen is replaced with Carbon Dioxide which is transported from the heart.
Gas exchange happens in the bed of CAPILLARIES in the lungs.
Because that is where the primary gas exchange happens.
The gas exchange between carbon dioxide and oxygen occurs.
Alveoli- these are the small sac-like structures where gas exchange occurs with the blood. Its creates an ideal site for gas exchange between the air in the lungs and the blood in the capillaries.
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 efficiency of gas exchange in the lungs of vertebrates is greater because it increases the lungs' internal surface area.
via their lungs
gaseous exchange
The gas exchange that takes place in the lungs are carbon dioxide and oxygen.
The actual air exchange takes place in the alveoli of the lungs
alveoli