The alveoli have very thin walls, which allow for rapid diffusion into the surrounding capillaries. There are also many alevoli in the lung, and that increases the surface area dramatically, allowing for more diffusion to occur
adapted by having a big surface area so it can absorb more oxygen and it contains lots of oxygen. Also it has very thin tubes for diffusion.
diffusion takes place in the alveoli
Diffusion
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Diffusion in the capillaries of the alveoli in the lungs.
Diffusion in the respiratory system refers to the process by which gases, such as oxygen and carbon dioxide, are exchanged between the lungs and the bloodstream. This occurs at the alveoli, where oxygen from the air diffuses into the blood and carbon dioxide from the blood diffuses into the air. Diffusion occurs because of the concentration gradient of these gases between the alveoli and the blood.
The respiratory system is the first link in the process of oxygen delivery to the body's tissues. The transport of oxygen in the air you breathe to the alveoli in your lungs allows for the diffusion of oxygen into the blood stream.
In the lungs, the diffusion of oxygen occurs from the alveoli (air sacs) into the blood capillaries, while the diffusion of carbon dioxide occurs from the blood capillaries into the alveoli for exhalation. This exchange process is facilitated by differences in partial pressures of oxygen and carbon dioxide between the air in the alveoli and the blood in the capillaries.
The alveoli.
It allows for rapid diffusion of gasses.
Trachea have cartillage rings which support it. And the Alveoli has large surface area for diffusion and its moist and thin.
1.They are single cell thick 2.Thin film of moisture covering the alveoli allows the oxygen to dissolve in therefore making the process efficient 3. they have a large surface area 4.they are surrounded by network of blood capillaries maintaining the concentration gradient for the gaseous exchange