Biology, asked by john20, 1 year ago

what is emphysema? what are there causes?

Answers

Answered by july2013
8
Emphysema is a condition that is characterized by the air-filled expansions of tissues of the body..
It damages the air sacs of the lungs which results in breathing problems..
Answered by Anonymous
9
hey mate here is the answer....

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Emphysema:
The the word emphysema means 'full of air' or 'inflammation'.
It is a chronic disorder.
Cause:
The major cause is excessive cigarette smoking.
Others may include inhalation of smoke or toxic substances over a period of time. Symptoms:
The walls of alveoli are damage due to excessive smoking, lose of elasticity of walls of bronchioles and alveoli.
Due to this the surface area for exchange of gases is reduced.
Alveolar sac remain filled with air even after expiration.
The lungs remain in plated as exhalation becomes difficult.
This disease may be prevented by avoiding cigarette smoking.
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thanks...

nice to help you
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