Through which vessel does the umbilical cord deliver oxygenated blood to the fetus?

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Study for the Nassau County EMT Test. Prepare with flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready for your exam!

Multiple Choice

Through which vessel does the umbilical cord deliver oxygenated blood to the fetus?

Explanation:
In fetal circulation, oxygenated blood reaches the fetus from the placenta via the umbilical vein. The placenta swaps gases with maternal blood, loading the fetal blood with oxygen, and that oxygen-rich blood travels through the umbilical vein to the fetus. The blood then returns to the placenta through the umbilical arteries as deoxygenated blood. There isn’t a placental vein that delivers to the fetus, and maternal arteries carry the mother’s blood, not the fetal supply.

In fetal circulation, oxygenated blood reaches the fetus from the placenta via the umbilical vein. The placenta swaps gases with maternal blood, loading the fetal blood with oxygen, and that oxygen-rich blood travels through the umbilical vein to the fetus. The blood then returns to the placenta through the umbilical arteries as deoxygenated blood. There isn’t a placental vein that delivers to the fetus, and maternal arteries carry the mother’s blood, not the fetal supply.

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