PHYSIOLOGY
REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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allow direct exchange of blood between the mother and fetus for nutrition.
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facilitate gas and nutrient exchange between the fetus and mother.
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support the weight of the developing fetus in the uterus.
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store gases and nutrients for later delivery to the fetus.
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Detailed explanation-1: -The placenta is the interface between mother and fetus. Functions of the placenta include gas exchange, metabolic transfer, hormone secretion, and fetal protection. Nutrient and drug transfer across the placenta are by passive diffusion, facilitated diffusion, active transport, and pinocytosis.
Detailed explanation-2: -The placenta contains a complex network of blood vessels that allow the exchange of nutrients and gases between the mother and the developing foetus.
Detailed explanation-3: -Its principal function is to supply the fetus, and in particular, the fetal brain, with oxygen and nutrients. The placenta is structurally adapted to achieve this, possessing a large surface area for exchange and a thin interhaemal membrane separating the maternal and fetal circulations.