SBI3U
THE CIRCULATORY SYSTEM DISORDERS WORKSHEET
Read pages 501-507 and answer the following assigned textbook questions below.
1. Describe the condition known as atherosclerosis. What factors contribute to the development
of this condition?
2. (a) Explain how cholesterol is an important factor in coronary artery disease (CAD).
(b) Why is LDL cholesterol referred to as “bad cholesterol” and HDL cholesterol as “good
cholesterol”?
3. A 50-year-old male who is not overweight and has normal blood cholesterol levels suffers a
heart attack. Propose a possible explanation.
4. Briefly explain the difference between CT and PET. What is the advantage of the new imaging
technologies over old technologies such as X-rays?
5. Why is cardiac catheterization considered an invasive procedure?