By which of the following routes does blood flow through the umbilical cord between the placenta and the fetus?
A) one umbilical vein and one umbilical artery
B) one umbilical vein and two umbilical arteries
C) two umbilical veins and one umbilical artery
D) two umbilical veins and two umbilical arteries
Correct Answer:
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Q1: The human genome contains _ pairs of
Q3: Abnormalities of the placenta that can cause
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Q5: What is the primary purpose of the
Q6: What is meant by "internal respiration"?
A)any gas
Q7: In the fetal heart, the foramen ovale
Q10: What maintains lung inflation during fetal development?
A)fetal
Q11: The fetus is potentially viable if born
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Q17: Which of the following is an index
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