You are teaching a class on cardiovascular disease and need to describe what atherosclerosis is. Which of the following statements is the most appropriate explanation?
a. It affects the arteries of the heart and is caused by a heart attack.
b. The walls of the coronary arteries lose elasticity, which leads to a heart attack.
c. Cholesterol and lipid material accumulate within the walls of arteries.
d. It affects veins and is caused by untreated high blood pressure.
Question 2
Which of the following statements concerning allergies is true?
a. Allergies affect young healthy individuals only.
b. An allergic reaction to a substance can occur minutes, or hours, after exposure to the substance.
c. Once hypersensitized to a substance, a given individual will experience allergic reactions to that substance randomly, not consistently.
d. Anaphylaxis is the mildest type of allergic reaction.
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