AQA · Biology · 8461

GCSE Biology: Coronary heart disease: a non-communicable disease

Organisation · AQA GCSE Biology (8461), specification point 4.2.2.4. Cards are generated from the exam board's own specification for "Coronary heart disease: a non-communicable disease", and every card links back to the page it came from. Specification © AQA — used with attribution.

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  1. What builds up inside the coronary arteries in coronary heart disease?

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    Layers of fatty material, which narrow the arteries.

  2. Why does coronary heart disease cause a lack of oxygen for the heart muscle?

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    Fatty material narrows the coronary arteries, reducing blood flow to the heart muscle.

  3. What is the function of a stent in treating coronary heart disease?

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    It keeps the narrowed coronary artery open so blood can flow through.

  4. How do statins help treat coronary heart disease?

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    They reduce blood cholesterol levels, slowing the rate at which fatty material is deposited in the arteries.

  5. Name the two ways a heart valve can become faulty.

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    It may not open fully, or it may develop a leak.

  6. What two types of replacement valve can be used for a faulty heart valve?

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    Biological valves or mechanical valves.

  7. What can be transplanted in the case of heart failure?

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    A donor heart, or a donor heart and lungs together.

  8. Give one reason an artificial heart may be used in a patient.

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    To keep the patient alive while waiting for a heart transplant, or to let the heart rest as an aid to recovery.

  9. Is coronary heart disease communicable or non-communicable?

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    Non-communicable — it cannot be passed from person to person.

  10. Name the three broad approaches to treating cardiovascular disease.

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    Drugs (e.g. statins), mechanical devices (e.g. stents, artificial hearts) and transplants.

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