Which blood vessels bring blood to the placenta?

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In fetal circulation, the placenta receives blood through the umbilical arteries. These two arteries carry blood away from the fetus toward the placenta for exchange of gases, nutrients, and wastes. After exchange, the placenta sends oxygenated blood back to the fetus via the umbilical vein. The other vessels listed do not bring blood to the placenta: renal arteries supply the kidneys, pulmonary arteries go to the lungs, and the umbilical vein brings blood to the fetus rather than to the placenta. So the vessels that bring blood to the placenta are the umbilical arteries.