Does the blood flow back to the atria when the ventricles contract ? Why ?
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6
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well, No, the blood doesn't flow backwards if it does that means the person is no longer alive
As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve. When the ventricle is full, the mitral valve shuts. This prevents blood from flowing backward into the atrium while the ventricle contracts
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2
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no never it goesback if its done the person will die
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