In the lungs of smokers, a process called metaplasia occurs where the normal lining cells of the lungs are replaced by squamous metaplastic cells (many layer of squamous epithelial cells). Functionally, why is this an undesirable body reaction to tobacco smoke?

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20-07-2016
Biology

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In the lungs of smokers, a process called metaplasia occurs where the normal lining cells of the lungs are replaced by squamous metaplastic cells (many layer of squamous epithelial cells). Functionally, why is this an undesirable body reaction to tobacco smoke?

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Anonymous Anonymous · Answer 1 · 2016-07-21T00:49:07-04:00

This an undesirable body reaction to tobacco smoke because the renewed squamous cells cannot discharge
and do not have cilia, it hinders lung function.

Squamous cells are thin, flat cells that look like fish scales, and are
found in the tissue that forms the surface of the skin, the lining of the
hollow organs of the body, and the lining of the respiratory and digestive
tracts. Most cancers of the anus, cervix, head and neck, and vagina are squamous cell carcinomas.

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