consequences of smoking Flashcards
on alveoli and circulatory system
1
Q
what is one effect that smoking has on alveoli
A
the tar in cigarettes breaks down alveoli walls and causes them to merge together, decreasing surface area to volume for gas exchange
2
Q
what will insuffucient gas exchange cause
A
shortness of breath due to insufficient Oxygen transport in blood. (Emphysema)
3
Q
nicotine effect on blood vessels
A
causes them to narrow, resulting increase in blood pressure
4
Q
what does narrower blood vessels lead to
A
increased risk of CHD ( coronary heart disease)
5
Q
what does carbon monoxide from cigarette smoking do
A
binds irreversibly to haemoglobin, reducing oxygen transport capacity by red blood cells
