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Explain how asthma impairs respiratory function

Explain how asthma impairs respiratory function

Science   Anatomy-And-Physiology   
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Answer #1

With normal breathing, air flows in through the nose or mouth and then into the windpipe (trachea). From there, it passes through the airways (bronchial tubes), into the lungs, and finally back out again.

In people with asthma, the airways are inflamed (swollen) and produce lots of thick mucus. Inflamed airways are also very sensitive, and things like dust or smoke can make the muscles around them tighten up. All these things can narrow the airways and make it harder for a person to breathe.

Symptoms:

  • trouble breathing
  • a tight chest
  • a whistling sound when breathing (wheezing)
  • a cough
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