Question
Biology Question on Exchange Of Gases
Asthma is characterised by
A
Spasm in bronchial muscle
B
Alveolar wall degradation
C
Pain in lungs
D
Damage in diaphragm
Answer
Spasm in bronchial muscle
Explanation
Solution
Asthma is a respiratory disorder. It is caused by allergic reactions due to pollen etc. It results in spasm of bronchial muscles and thus the patient experiences shortness of breath and thus difficulty in breathing. The characteristic feature that helps is diagnosis is production of wheezing sound