Smoking
- Created by: rewrentless
- Created on: 18-03-19 23:02
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- Smoking
- Tar
- general name given to toxic chemicals in cigarette smoke
- many of chemicals are carcinogenic
- general name given to toxic chemicals in cigarette smoke
- Lung Cancer
- - tar damages DNA in epithelial cells
- Emphysema
- tar damages alveolar lining and breaks down the alveolar wall - SA of lungs reduced
- air in damaged alveoli cant be expelled preventing fresh air being taken in
- tar damages alveolar lining and breaks down the alveolar wall - SA of lungs reduced
- Bronchitis
- - bronchioles are inflamed and narrow
- - increased mucus production reduces air flow
- - cilia in air passages are damaged by tar
- - increased mucus production reduces air flow
- symptoms - coughing, loss of breath, increased susceptibility to infection
- - bronchioles are inflamed and narrow
- Tar
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