1 / 8

Epidemiology of Heart Disease

Epidemiology of Heart Disease. Lower Sixth Biology. Aims. To be able to discuss The reasons for the global distribution of coronary heart disease.

renee-acosta
Télécharger la présentation

Epidemiology of Heart Disease

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Epidemiology of Heart Disease Lower Sixth Biology

  2. Aims • To be able to discuss • The reasons for the global distribution of coronary heart disease. • The difficulty in achieving a balance between prevention and cure, with reference to coronary heart disease, coronary by-pass surgery and heart transplant surgery.

  3. Starter activity (a)(i) deposits of fat (atheroma) in the; wall thickness increased; the epithelium/endothelium is ruptured/damaged; max 2 (ii) increases blood pressure; narrower lumen increases friction/ restriction on blood flow; 2 (b) increases the level of blood cholesterol/lipids; increases the ratio of LDLs to HDLs; increases the rate of deposition of fats/damage due to free radicals in artery walls; max 2 (c) animals fats have more saturated fats and cholesterol/LDLs than plants; these fats increase the chances of developing atheroma; 2 (d) reduces blood flow to the heart;less oxygen to heart muscle; muscle dies/ myocardial infarction/causes pain of angina; 3

  4. Global distribution of heart disease

  5. Incidence in UK • Highest among • Scotland, NI, north and NW England • Poorer people • Some ethnic groups – eg South Asians • Men

  6. Epidemiology • Using pages 196-198 answer the following ….full sentences • 1.What is the effect of smoking on CHD? Why does it have this effect? • 2. What interaction is there between smoking and other risk factors • 3. What were the results of the Framlingham and Whitehall studies? • Using the table what individual would have the greatest risk of developing CHD? The least risk? • Answer SAQ 14.6

  7. Diet

  8. Summary • You should now be able to explain how an atheroma builds up • The risk factors involved • The difference between HDH and LDL • The effects of plaques and thrombus formation • The differences between the different types of CVD • The cause and effect of strokes • Homework AS18 Question sheet 2

More Related