The total inside capacity of lungs is _ for man.
Correct answer: D. 5 litres
- A. 6.7 litres
- B. 2.5 litres
- C. 7 litres
- D. 5 litres
Explanation
In an adult human being when the lungs are fully inflated the total inside capacity of lungs is about 5 litres. (PTB)
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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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