MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Many chemicals in cigarettes are considered carcinogenic because they cause what?
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Emphysema
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Cancer
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Heart disease
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Liver Failure
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Explanation:
Detailed explanation-1: -Cigarette smoking is the number one risk factor for lung cancer. In the United States, cigarette smoking is linked to about 80% to 90% of lung cancer deaths. Using other tobacco products such as cigars or pipes also increases the risk for lung cancer. Tobacco smoke is a toxic mix of more than 7, 000 chemicals.
Detailed explanation-2: -Some carcinogens cause cancer by changing a cell’s DNA. Others do not affect DNA directly, but lead to cancer in other ways. For example, they may cause cells to divide at a faster than normal rate, which could increase the chances that DNA changes will occur.
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