the blood returns to the heart through blood vessels called
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Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.
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Answer:
Vein
Explanation:
There are two types of blood vessels in the circulatory system. "veins", which carry blood back to the heart from the body, and "arteries", which carry blood from the heart to the body.
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