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Year 10 - Science

Cardiovascular disease

Health and disease

Unit Summary

This unit explores health and disease, including communicable and non-communicable types and their interactions. It examines lifestyle impacts, disease spread, evaluates cardiovascular treatments, and highlights the importance of risk evaluation, peer review, and effective communication of results.

Lesson Summary

You will learn to describe the causes of coronary heart disease and evaluate some different treatments for cardiovascular disease.

Key Notes

  • Cardiovascular disease (including coronary heart disease) is a common non-communicable disease.
  • The coronary arteries supply blood to the heart muscle, and can become blocked by fatty deposits.
  • This restricts blood flow and causes a lack of oxygen to the heart muscle, which can cause a heart attack.
  • Heart valves stop the backflow of blood in the heart and they can become damaged.
  • Heart disease can be prevented with lifestyle changes, or treated with stents, medicines, transplants and surgery.

Vocabulary To Learn

  • cardiovascular disease: General term for conditions affecting the heart or the blood vessels.
  • coronary heart disease: A condition whereby the coronary arteries have been blocked.
  • arteries: Blood vessels that carry blood away from the heart.
  • stent: A short wire mesh tube that can be inserted into the artery to allow the unrestricted flow of blood.
  • statins: Medication to lower blood cholesterol.

Common Mistakes To Avoid

  • The heart does not have its own blood vessels. Students often believe the heart gets oxygen and glucose from the blood circulating through it.

3 Quick Questions (With Answers)

1. Explain the scientific idea in this lesson using two key points.

Cardiovascular disease (including coronary heart disease) is a common non-communicable disease. The coronary arteries supply blood to the heart muscle, and can become blocked by fatty deposits.

2. Define this scientific word and use it in context. 'cardiovascular disease'

General term for conditions affecting the heart or the blood vessels. Include the word in a full scientific explanation, not as a single label.

3. Correct this common scientific misunderstanding.

Mistake: The heart does not have its own blood vessels. Students often believe the heart gets oxygen and glucose from the blood circulating through it. Correction: The heart has its own blood supply through the coronary arteries.

More Lessons In This Unit

Browse all guides in the Year 10 Science guide library.