Which of the following statements does NOT describe a function of the placenta? Select one: a. Metabolic wastes move from the fetal blood to the maternal blood. b. Carbon dioxide moves from the fetal blood to the maternal blood. c. Protein and minerals move from the fetal blood to the maternal blood. d. Nutrients and oxygen move from the maternal blood to the fetal blood.
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Metabolic wastes move from the fetal blood to the maternal blood: This is a function of the placenta, as it helps in the removal of waste products from the fetal blood. b. Carbon dioxide moves from the fetal blood to the maternal blood: This is also a function of Show more…
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The umbilical vein carries (a) waste products to the placenta, (b) oxygen and food to the fetus, (c) oxygen and food to the placenta, (d) oxygen and waste products to the fetus.
Which ONE of the following statements is TRUE? Select one: Although nutrients and oxygen can cross the placenta between mother and fetus, other substances like alcohol, caffeine, drugs, pesticide residues, and toxins in cigarette smoke cannot cross it. Two umbilical arteries transport oxygen rich blood from the placenta to the fetus. The maternal circulatory system delivers oxygen and nutrients to the maternal endometrium, which then diffuse across the placental membranes into the placental circulation. One of the functions of the placenta is to provide pregnancy hormones. The placenta provides progesterone and estrogen when the fetus is a female and testosterone when the fetus is a male. One umbilical vein transports deoxygenated blood from the fetus to the placenta.
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