Some symptoms of chronic obstructive pulmonary disease (COPD) are listed.
1) bursting of alveoli
2) loss of elastic fibres
3) increase in secretion of mucus
4) reduction in surface area for gaseous exchange
5) narrowing of airways
Which of these are also the symptoms of emphysema?
1, 2 and 4
2 )
1, 3 and 5
3 )
2, 3 and 5
4 )
3, 4 and 5
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