Umbilical arteries
A. carry blood with low oxygen and high metabolic wastes from the placenta to the mother's circulation.
B. deliver oxygen and nutrient-rich blood from the fetus to the placenta.
C. carry highly oxygenated blood from the placenta to the fetus.
D. carry blood with low oxygen and high metabolic wastes away from the fetus to the placenta.
E. deliver oxygen and nutrient-rich blood from the mother to the placenta.
Answer: D
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Label J represents which of the following structures?
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