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Definition of Disease

Asthma is cau...

Question

Asthma is caused due to

A

Bleeding into pleural cavity

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B

Infection of trachea

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C

Infection of lungs

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D

Spasm in bronchial muscles

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Solution

The correct option is D Spasm in bronchial muscles
Asthma is a disease caused due to an allergic reaction to foreign substances that affect the respiratory tract. In this, the airways and lungs of a person can become obstructed because they become narrow and cut off air flow. Bronchioles can also constrict (narrow) because of muscle spasms.

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