A: Asthmatic patients use bronchodilator drug | vedclass

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(A) Asthma is a respiratory disorder characterized by difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles.It is of

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) Asthma is a respiratory disorder characterized by difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles.It is often triggered by allergens.During an asthma attack,the smooth muscles in the walls of the bronchioles undergo spasms (constriction),which narrows the airways and makes breathing difficult.Bronchodilators and inhalers are used to relax these smooth muscles,thereby dilating the bronchioles and providing symptomatic relief.Therefore,both the Assertion and the Reason are correct,and the Reason provides the correct explanation for why bronchodilators are used.

$A$: Asthmatic patients use bronchodilator drugs as well as inhalers for symptomatic relief.
$R$: Asthma is characterized by the spasm of smooth muscles in the wall of bronchioles due to allergens.

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$A$: Asthmatic patients use bronchodilator drugs as well as inhalers for symptomatic relief.$R$: Asthma is characterized by the spasm of smooth muscles in the wall of bronchioles due to allergens.