What Is Right Artrium.....????
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The right atrium (RA) (plural: atria) is one of the four chambers of the human heart, and is the first chamber to receive deoxygenated blood returning from the body. It plays an important role in originating and regulating the conduction of the heart.....
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The right atrium is the upper right ventricle. It opens in the right ventricle through the tricuspid valve. The right atrium acts as a storage unit for the deoxygenated blood of the body.
The superior vena cava produces oxygen-free blood from parts of the body above the heart, such as the head and arms.
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