Heart Valves and Replacements

Question 1

What do heart valves do, and why are they important?

Answer 1

They prevent blood from flowing backward,

Question 2

What’s the difference between human heart valves and artificial heart valves?

Answer 2

Human valves: Natural, living tissue.
Artificial valves: Made from metal or plastic.

Question 3

How is a cow valve used in the heart, and how is it different from a human valve?

Answer 3

a cow valve tooken from a cows heart put into a human body when the human valves dont work

Question 4

What are the advantages of using cow tissue heart valves?

Answer 4

Less likely to cause blood clots

Question 5

What are the disadvantages of using cow tissue heart valves?

Answer 5

They don’t last as long

Question 6

What are the advantages of using artificial (mechanical) heart valves?

Answer 6

Last a long time, sometimes even a lifetime.

Question 7

What are the disadvantages of using artificial (mechanical) heart valves?

Answer 7

Can cause blood clots
+
may reject

Question 8

Why might someone need a heart valve replacement?

Answer 8

The valve might be damaged

Question 9

How is a cow’s heart valve prepared to be used in a human?

Answer 9

The valve is taken from a cow’s heart and treated so the body doesn’t reject it.

Question 10

How long do artificial and cow tissue heart valves last?

Answer 10

Last 10-15 years maybe a lifetime