How the blood goes to the heart through the vein without any pressure
roshnioliver77:
pulmanary vein ?
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this is constant process of circulation when we take oxygen from atmosphere our lungs diaphragm pushes and blood regulates in be in and carbon dioxide when comes out then there is balance btw this process
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blood enters the heart through the right atrium and moves to right
the superior vena cava is the vein that brings blood
I think this is answer
the superior vena cava is the vein that brings blood
I think this is answer
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