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What is the primary function of the placenta?
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The primary function of the placenta is to provide oxygen and nutrients to the developing fetus and to remove waste products from the fetus's blood.
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At what stage of pregnancy does the placenta begin to form?
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The placenta begins to form at the blastocyst stage, around 5-6 days after fertilization.
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Which cells play a crucial role in the formation of the placenta?
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Trophoblast cells play a crucial role in the formation of the placenta.
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How does the placenta facilitate nutrient exchange between mother and fetus?
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The placenta facilitates nutrient exchange through villi that increase surface area, allowing diffusion of nutrients and oxygen from maternal blood to fetal blood.
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What role does the placenta play in hormone production?
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The placenta produces hormones such as hCG, progesterone, and estrogen, which are essential for maintaining pregnancy.
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What is placental abruption?
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Placental abruption is a condition in which the placenta detaches from the uterine wall before delivery.
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What is the placental barrier and its function?
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The placental barrier is a semipermeable membrane that controls the exchange of substances between maternal and fetal blood.
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Name a common complication associated with the placenta.
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A common complication associated with the placenta is placenta previa.
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How is the placenta expelled after birth?
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After birth, the placenta is expelled in the third stage of labor through uterine contractions.
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What structural transformation does the placenta undergo throughout pregnancy?
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Throughout pregnancy, the placenta grows in size and thickness, increasing its surface area to support the growing fetus.
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What is the role of the umbilical cord in relation to the placenta?
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The umbilical cord connects the fetus to the placenta, allowing the exchange of blood between both.
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What nutrients are typically transferred from mother to fetus via the placenta?
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Nutrients such as glucose, amino acids, fatty acids, and vitamins are transferred from mother to fetus via the placenta.
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How does the placenta contribute to immune protection for the fetus?
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The placenta provides immune protection by transferring antibodies from mother to fetus.
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What is the chorion and its relationship to the placenta?
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The chorion is an outer fetal membrane that develops into part of the placenta.
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Describe the blood supply system of the placenta.
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The placenta receives maternal blood through spiral arteries and returns it to the maternal circulation through uterine veins.
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