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Solution


Q.

Name the chronic respiratory disorder caused mainly by cigarette smoking.              [2016]
1 Respiratory acidosis  
2 Respiratory alkalosis  
3 Emphysema  
4 Asthma  

Ans.

(3)

Emphysema is a chronic obstructive pulmonary disease (COPD) caused due to cigarette smoking. It is an inflation or abnormal distention of the bronchioles or alveolar sacs of the lungs which causes irreversible distension and loss of elasticity in the walls of alveolar sacs of the lungs.