How many different types of bronchitis are there?
Correct answer: A. 2
- A. 2
- B. 3
- C. 4
- D. 5
Explanation
Option A is the correct option because There are two different types of bronchitis, acute and chronic. In most cases, acute bronchitis is caused by a virus. Chronic bronchitis is a type of chronic lung disease.
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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