Which of the following is a feature of maternal-fetal circulation during pregnancy?

Practice question

Question

Which of the following is a feature of maternal-fetal circulation during pregnancy?

Options

Choose one · Correct answer highlighted

Fetal oxygenation occurs in the lungs The placenta serves as the primary site of gas exchange Correct There is direct mixing of maternal and fetal blood Fetal blood remains completely separate due to a thick placental barrier

Explanation

In fetal circulation, the placenta is the main organ for gas exchange since the fetal lungs are non-functional until birth.

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