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Adding one proton to the nucleus of an atom
Mitral Valve
A valve in the heart that lies between the left atrium and left ventricle, ensuring one-directional blood flow within the heart.
Atria Contracting
The phase of the cardiac cycle where the atria of the heart contract to move blood into the ventricles.
Ejection
The process of forcibly expelling something, as in the ejection of blood from the heart during systole.
Ventricles
Chambers of the heart that receive blood from the atria and pump it out of the heart to the lungs and the rest of the body.
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