What could occur as a result of inhaling the nicotine in tobacco smoke?
1 )
cilia lining the respiratory tract are paralysed, causing an increase in the secretion of mucus from enlarged goblet cells
diffusion into blood capillaries followed by the release of adrenaline, which increases blood pressure and heart rate
3 )
diffusion into the epithelial cells of the respiratory tract, increasing the risk of mutation and acting as a potential carcinogen
4 )
dissolves in the lining of the alveoli, causing a breakdown in the alveolar walls and a decrease in surface area for gas exchange
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