The gas exchange system takes air into and out of the
body to supply oxygen and remove carbon dioxide
The movement of air in and out of the lungs is brought about by the movements ribs
and diaphragm. The air movement maintains a steep concentration gradient for the
diffusion of oxygen and carbon dioxide between the blood and the air in the lungs.
The complete gas exchange includes the ribs, the intercostal
muscles, the diaphragm, the trachea, the bronchi, the
bronchioles, alveoli and pleural membrane of the thorax
Gas exchange takes place in the lungs and depend on
efficient diffusion of the gases