Risk factors of heart disease
- Created by: jessicawarren
- Created on: 04-05-16 09:08
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- Risk Factors of Heart Disease
- High blood cholestrol/poor diet
- 1) High blood cholestrol levels increase risk of CD
- 2) Cholestrol one of main constituents of fatty deposits in atheromas
- 3) Atheromas lead to increased blood pressure/blood clots
- 4) Could block flow of blood to CA, could cause myocardial infarction
- 5) Diet in high saturated fat associated with high cholestrol levels
- 6) Diet high in salt also increases risk of CD because it increases risk of HBP
- Cigarette Smoking
- 1) Nicotine and carbon monoxide increase risk of CD
- 2) Nicotine increases risk of HBP
- 3) Carbon monoxide combines with haemoglobin, reduces amount of O2 transported in blood and therefore the amount available to tissues- leads to MI
- 4) Decreases amount of antioxidants which are important for protecting cells. Fewer antioxidants means cell damage in CA walls, can lead to atheroma formation
- High blood pressure
- 1) HBP increases risk of damage to artery walls
- 2) Damaged walls increase risk of atheroma formation, further increase in BP
- 3) Atheromas also cause blood clots
- 4) Blood clots block blood flow to heart muscle, possibly resulting in MI
- High blood cholestrol/poor diet
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