Salma Ahmed
English Lit. GCSE Student
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How does Smoking cause Bronchitis and Emphysema?
- Words:
- 491
- Submitted:
- Tue Sep 16 2003
Have a little read: ... How does Smoking cause Bronchitis and Emphysema? Smoking causes many harmful chemical substances entering the lungs. These substances include: ? Tar ? Nicotine ? Carbon Monoxide As these substances enter the lungs most of them settle in and begin to do they're jobs in the body (mainly destroying). However some of these substances are trapped in sticky mucus and coughed out or sneezed out. Even so, any part of the upper respiratory tract and lungs can become infected by disease causing micro-organisms. Infection of the bronchus and bronchioles is called bronchitis. It is the inflammation of the bronchi and is characterised by coughing up phlegm and also the narrowing of the bronchi causing breathlessness. When these bronchi and bronchioles get infected, they swell and mucus (thick fluid) forms. This makes it hard for you to breathe. You may cough up mucus and you may wheeze (make a whistling sound when you breathe). Acute bronchitis is almost always
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