What is the main function of the placenta during human pregnancy?
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Protecting the fetus from physical shock.
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Exchange of nutrients, gases, and waste between mother and fetus.
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Producing amniotic fluid.
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Triggering labor contractions.
📝 Detailed explanation
The placenta allows diffusion of Oxygen and glucose to the fetus and removal of $CO_2$ and urea, while keeping the blood systems separate.
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