CHD: A Non-Communicable Disease (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
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What is CHD?
What is CHD?
Coronary Heart Disease: narrowed/blocked coronary arteries from fatty build-up
Is CHD communicable?
Is CHD communicable?
No - it's non-communicable (not infectious)
What are stents?
What are stents?
Metal mesh tubes inserted to keep arteries open
Stents: advantages
Stents: advantages
Lower heart attack risk, quick recovery time
Stents: disadvantages
Stents: disadvantages
Heart attack risk during procedure, infection, blood clots
What statins do
What statins do
Reduce LDL (bad) cholesterol levels
What is LDL cholesterol?
What is LDL cholesterol?
Low-density lipoprotein - 'bad' cholesterol
What is HDL cholesterol?
What is HDL cholesterol?
High-density lipoprotein - 'good' cholesterol
Statins: disadvantages
Statins: disadvantages
Continuous use needed, side effects, not immediate
Biological valve: source
Biological valve: source
Pigs or cattle
Biological valve: lifespan
Biological valve: lifespan
12-15 years
Mechanical valve: advantage
Mechanical valve: advantage
Last for a long time
Artificial heart: use
Artificial heart: use
Temporary solution whilst waiting for donor heart
Why are artificial hearts less likely to be rejected?
Why are artificial hearts less likely to be rejected?
Metal/plastic not recognised as foreign by immune system
Artificial blood use
Artificial blood use
Saline solution keeps alive after losing 2/3 red blood cells