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Solution


Q.

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively        [2018]
1 Inflammation of bronchioles; Decreased respiratory surface  
2 Increased number of bronchioles; Increased respiratory surface  
3 Increased respiratory surface; Inflammation of bronchioles  
4 Decreased respiratory surface; Inflammation of bronchioles  

Ans.

(1)

Asthma is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles. Emphysema is a chronic disorder in which abnormal distension of the bronchioles or alveolar sacs of the lungs occurs due to which respiratory surface is decreased for the exchange of oxygen and carbon dioxide.