Lungs and Vesicles:
Function - Performance:
It is composed of tubes through which the air passes and from the vesicles responsible for the exchange of gases with blood.
Building suitability for the job:
Through the walls of the vesicles the exchange of gases between the air in the lungs and blood in the surrounding blood capillaries.
The vesicles are small and numerous bags connected to small airways and connected together as grape clusters.
The many vesicles (about 300 million) greatly increase the area of the outer surface to exchange gases between the air in the lungs and between the blood.
If the vesicles were extended, we would find an area similar to that of a tennis court - 70 square meters.
The fine walls, surrounded by a network of capillaries, enable rapid exchange of gases between blood and air in the vesicle cavity.
Function - Performance:
It is composed of tubes through which the air passes and from the vesicles responsible for the exchange of gases with blood.
Building suitability for the job:
Through the walls of the vesicles the exchange of gases between the air in the lungs and blood in the surrounding blood capillaries.
The vesicles are small and numerous bags connected to small airways and connected together as grape clusters.
The many vesicles (about 300 million) greatly increase the area of the outer surface to exchange gases between the air in the lungs and between the blood.
If the vesicles were extended, we would find an area similar to that of a tennis court - 70 square meters.
The fine walls, surrounded by a network of capillaries, enable rapid exchange of gases between blood and air in the vesicle cavity.
Labels
respiratory device