MEDICINE MCQ
CARDIOVASCULAR MEDICINE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During fetal circulation, most of the blood from the inferior vena cava is directed toward the foramen ovale.
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TRUE
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Blood flow in the unborn baby follows this pathway: Oxygen and nutrients from the mother’s blood are transferred across the placenta to the fetus through the umbilical cord. This enriched blood flows through the umbilical vein toward the baby’s liver. There it moves through a shunt called the ductus venosus.
Detailed explanation-2: -The hole between the top two heart chambers (right and left atrium) is called a patent foramen ovale (PFO). This hole allows the oxygen rich blood to go from the right atrium to left atrium and then to the left ventricle and out the aorta. As a result the blood with the most oxygen gets to the brain.
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