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The distance between air and the blood is very short because the walls of the alveoli and capillaries are extremely thin. The oxygen and carbon dioxide concentration gradiesnts are very steep.
The dense network of alveolar capillaries has a very large surface area (about 125 sq ft)
Wiki User
∙ 13y ago
Wiki User
∙ 15y ago# small diffusion distance between alveoli in the lungs and the capillaries - approx. 40 micrometres. # Large surface area - millions of tiny sacs (alveoli) increase the capacity for the uptake of oxygen. # A steep concentration gradient is maintained by a constant, rapid blood flow, thus ensuring as rapid diffusion as possible.
Wiki User
∙ 11y agoBoth gills and lungs are designed for the exchange of gases. Each have tiny pockets that have even tinier blood vessels surrounding them. This is where the exchange of gases occur. To work properly the gills have to be in a moving fish and lungs work properly when the diaphragm move the chest in animals.
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What tiny structures exchange oxygen and carbon dioxide in the human lungs?
Alveoli.
What are small sac-like structures that is the site of gas exchange in the lungs?
"alveoli"
Which of the following structures is involved in the gas exchange function of the respiratory system?
Trachea, brochi, alveoli,lungs
What does the structure of lungs enable them to do?
The structures in the lungs enable the lungs to exchange oxygen for carbon dioxide in the blood. The structure are also designed to help the lung protect themselves from irritants.
How do the lungs of an African lungfish work?
The same way as other animals with "lungs". Air is taken into the body and gaseous exchange occurs with the red blood cells. The "lungs" of a lungfish are much simpler in structure than those of a mammal. They are just simple sacs, rather then the spongelike structures of mammal lungs. The general way they work is the same as a mammal's lungs, but they are not as efficient, having a smaller surface area.
What is the thin barrier that allows for the efficient exchange of gases between the lungs and the blood called?
The blood brain barrier
What two structures does the exchange of gas occur?
There are two place where this process occurs: i) the Lungs, and ii) the Capilliaries.
Are bird lungs more efficient than mammal lungs?
Yes. Bird lungs are more efficient than mammal lungs.
What happens in the alveoli in the process of gas exchange.?
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.
What are the structures that allow for the exchange of oxygen and carbon dioxide between the lungs and blood?
The tiny air sacs of the lungs were oxygen and carbon dioxide are exchanged are the alveoli.
What two structures do frogs use for gas exchange?
Frogs uses respiratory surfaces which totals to three to exchange gases on its surroundings. The three respiratory surfaces are the skin, its lungs, and the lining of their mouth.
The Group of animals with the most efficient respiratory system?
Because of counter-current exchange, fish gills are the most efficient at gas exchange. This is followed by the continuous flow of bird lungs (due to their system of air-sacs). I don't know which animal exactly, but look to the fish for your answer.
