After receiving a hormonal shot,an asthma pat | vedclass

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(B) During an allergic reaction,$histamine$ is released,which acts as a vasodilator. This increases plasma flow and leads to the narrowing of the lume

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Adrenalin

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(B) During an allergic reaction,$histamine$ is released,which acts as a vasodilator. This increases plasma flow and leads to the narrowing of the lumen of the bronchioles,causing difficulty in breathing,which is characteristic of asthma.Adrenaline (epinephrine) is administered because it acts as a potent bronchodilator and vasoconstrictor. It relaxes the smooth muscles of the bronchioles,thereby widening the airway and providing relief in exhaling the air.

After receiving a hormonal shot,an asthma patient will get relief in exhaling the air. The hormone injected will be

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