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BIOLOGY
Asked by Max

How does blood move inside your heart? How does it move to the right and left ventricles, the lower chambers, the aorta, the major veins, and to the lungs?

Deoxygenated blood from the body comes into the heart through the vena cava. It enters the right atrium, but is unable to travel further because there are valves which require pressure. When the heart beats, it pushes blood towards the valve and the required pressure is achieved to open the valve and blood flows through to the right ventricle. From here, blood is pumped to the lungs to be oxygenated. To do this, blood passes through the pulmonary artery and to the lungs. Once it has been oxygenated, the blood comes back to the heart, this time travelling in the pulmonary vein and emptying in the left atrium. Once again, pressure is applied in the form of a heart beat and is able to pass through to the left ventricle. It is then pumped into the aorta which connects to many other blood vessels which carry the blood all over the body. Hope this helps!

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