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What part of the respiratory system does cigarette smoke most adversely affect?

What part of the respiratory system does cigarette smoke most adversely affect? O alveoli bronchi trachea diaphragm Submit Request Answer

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Alveoli are most adversly affected by cigratte smoke. The are tiny thing walled sacs present in lungs . Wall of alveoli is eventually affected by cigratte smoke and lead to loosing their effectiveness to transfer oxygen to blood. So

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