caused by smoking.
- tar stimulates inflammatory response.
- alveoli loose elasticity.
- reduced tidal volume.
- e.c. may be destroyed.
symptoms are sevre breathing difficulties.
- excess tissue in the lungs due to uncontrollable cell division.
risk factor is expose to mutagenic agents.
- particles stimulate inflammatory response.
- scar tissue.
- thickens alveolar walls, reduced elasticity, longer diffusion path.
symptoms are shortness of breath.
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