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Human heart has got four chambers. There are holes that inter connect them. But these holes have valves to control the flow of blood in between them.

Some chambers contain only purified blood and some others contain impure blood collected from all over the body. If a hole appears on a wall separating them, they mix up and impure blood will be supplied to our body organs. they slowly get polluted and eventually can lead to death also!

Another case happens when the hole on the outer wall of the heart or when the hole is between chambers containing same kind of blood. Here the adverse effect comes due to the pressure of the heart. When heart contracts its walls for supplying impure blood to kidney and pure blood to other body parts, the blood leak out through the hole and it do not reach where it is meant for.

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13y ago

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