Paramedic National Registry Practice

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How many arteries and veins make up the umbilical cord?

  1. 1 artery and 2 veins

  2. 3 arteries and no veins

  3. 2 arteries and 1 vein

  4. 2 veins and 1 artery

The correct answer is: 2 arteries and 1 vein

The umbilical cord typically consists of two umbilical arteries and one umbilical vein. The two arteries carry deoxygenated blood from the fetus back to the placenta, while the single vein transports oxygenated blood from the placenta to the fetus. This arrangement is crucial for fetal development, as it enables efficient nutrient and gas exchange between the mother and the growing fetus. The presence of one vein and two arteries is a standard anatomical structure, making this answer the accurate representation of the umbilical cord's vascular anatomy.

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