the effect of smoking on the alveolus
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Cigarette Smoking on Alveolus
Over time, the toxins from inhaled cigarette smoke break the thin walls of alveoli, leaving larger, less efficient air sacs. The sacs also begin to lose their bounce, making it harder to bring in the oxygen and expel carbon dioxide. Both can become partially trapped in the lungs. In a smoker, this process signals the beginning of emphysema, a form of COPD.
The damage from emphysema cannot be reversed. Once air sacs are broken, they do not mend. However, if exposure to cigarette smoke stops soon enough, the damage can be halted. If smoking continues, there will come a point where lung damage will progress regardless of whether a person stops smoking or not.
Over time, the toxins from inhaled cigarette smoke break the thin walls of alveoli, leaving larger, less efficient air sacs. The sacs also begin to lose their bounce, making it harder to bring in the oxygen and expel carbon dioxide. Both can become partially trapped in the lungs. In a smoker, this process signals the beginning of emphysema, a form of COPD.
The damage from emphysema cannot be reversed. Once air sacs are broken, they do not mend. However, if exposure to cigarette smoke stops soon enough, the damage can be halted. If smoking continues, there will come a point where lung damage will progress regardless of whether a person stops smoking or not.
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capacity to oxygenation of the blood is decreased
loss elasticity of the walls
loss elasticity of the walls
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