Biology Topic Practice
Heart Valve Replacement
If heart valves become leaky or stiff, they can be replaced to restore proper blood flow.
What is a drawback of a mechanical heart valve?
What is Heart Valve Replacement?
"Heart valve replacement is a surgical procedure to replace a damaged or diseased heart valve."
Question 1
What happens in coronary heart disease?
Question 2
How do statins help reduce the risk of coronary heart disease?
Question 3
What does a stent do?
Replacement Options
Biological: From an animal (pig/cow) or human donor. No blood thinners needed.
Mechanical: Made of man-made materials. Very durable but require lifelong medication.
Faulty valves prevent blood from being pumped effectively.
Exam Tip
Stiff valves force the heart to work harder, which can lead to heart failure.
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