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If your lungs were simply two large balloon-like structures, the surface area wouldn’t be big enough for you to get enough oxygen by diffusion to supply the needs of your cells.
But each alveolus is a very tiny sphere. The smaller the radius of a sphere, the bigger the relative surface area – halving the radius increases the relative surface area by a factor of four.
The millions of tiny alveoli in the human lungs are a very effective adaptation which provides a huge surface area for gaseous exchange into and out of the blood.
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∙ 8y ago
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Do gas pass through the walls of the alveoli by respiration?
Yes.
During respiration the exchange of gases takes place through the walls of the what?
During respiration the exchange of gases takes place through the walls of the alveoli. From there, the oxygen is taken by the blood to the body tissues.
How thin walls help the alveoli?
It allows for rapid diffusion of gasses.
What diseases affect the alvioli?
Alveoli are the minute sacs inside the lungs that expand and contain a membrane that allows the exchange of oxygen and carbon dioxide, called respiration. One of the major diseases that affect the alveoli is emphysema. That is when the walls between the alveoli breaks down and they lose surface area and become less efficient at respiration.
How do alveoli and capillaries help to get oxygen?
The alveoli is the point where the waste product of respiration (carbon dioxide) and oxygen are diffused into or out of the blood. Oxygen diffuses into the blood stream and are carried to the heart and carbon dioxide is diffused out of the lungs and expired. The alveoli have moist walls and are close to the capillaries which speeds up the process.
Where does respiration begins?
In the respiratory bronchioles
What is the name of the process that takes place in the alveoli?
respiration ;)
What walls does the oxygen and nutrients diffuse?
alveoli
What does each lung consist?
Bronchi, Bronchioles and Alveoli. Bronchi and Bronchioles - transport systems Alveoli - Respiration occurs
What is interstitial fibrosis?
the inflamation and harding of the walls of the alveoli
Hyperinflation of alveoli with damage to alveolar walls?
Emphysema
When walls of alveoli deteriorate and lose their elasticity?
Emphysema.
