how does asthma affect the respiratory system?
Answer by mvmnexprt
asthma is a restrictive disorder meaning that it makes it hard to get air in to the lungs as opposed to a obstructive disorder that doesn't allow air to flow out easily like with emphysema. Asthma is caused by a hyperactive histamine response that constricts airways. Inhalers use steroids to increase the diameter of airways so a person can get air into the lungs.
Answer by Kevin (a.k.a. novell_mcne)
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