A biological mechanisms utilized for gas exchange is the respiratory system often known as the respiratory apparatus or ventilatory system. Defending on the size of the organism it’s habitat of residence and it’s evolutionary background the anatomy and physiology that causes this vary widely.
The linings of the lungs internalise the respiratory surface.Millions of tinybair sacs known as alveoli responsible of gas exchange that take place in the lungs because of the abundant blood supply in these tint air sacs are in close proximity to another.
