Why does the heart has valves?

Answer 1

Valves are the "doors" which allow the proper amount of blood into each ventricle of the heart so it does not "explode" or push too much into the body. When high blood pressure occurs the culprit can be a defective valve that is leaking or failing to open and close properly. Not many people have that type of high blood pressure. There are many types of high blood pressure which doctors can determine by listening to the valves in the heart or elsewhere.

Answer 2

Valves are needed to regulate the flow of fluid. Eg. in the case of blood flow valves are needed to regulate the direction of blood flow and also to prevent mixing and backward flow.

Answer 3

Valves prevent the backward flow of blood. This ensures that deoxygenated blood doesn't mix with oxygenated blood.

Answer 4

Because if you do not have valves, there isn't a way to prevent the back flow of the blood.

Answer 5

The use of the valves in the heart is to have blood flow regularly through the heart. The valves pump blood out of the heart into the body.

Answer 6

If you did not have valves in your heart then that would cause a back flow of blood which is bad.

Answer 7

The valves' job is to prevent blood from flowing in the wrong direction and keeping the blood flow regular.

Answer 8

they keep blood from going backwards

Answer 9

To prevent backflow of blood

Answer 10

It opens it up