DEVELOPMENTAL PSYCHOLOGY
PRENATAL DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It eliminates waste products from the fetus.
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It has an endocrine function during pregnancy.
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It exchanges blood between the fetus and its mother.
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It prevents the diffusion of mother’s hormones into the fetus.
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Detailed explanation-1: -c. It is an organ that helps in the exchange of nutrients and oxygen wastes between the mother and fetus.
Detailed explanation-2: -What contains mostly maternal cells? Which of the following is not a true statement about the placenta? It attaches the fetus to the uterine wall.
Detailed explanation-3: -Oxygen and nutrients from the mother’s blood are transferred across the placenta to the fetus. The enriched blood flows through the umbilical cord to the liver and splits into three branches. The blood then reaches the inferior vena cava, a major vein connected to the heart.
Detailed explanation-4: -Correct option C Antibody cannot cross the placenta from mother to fetus. Explanation:Placenta is the intimate connection between the fetus and uterine wall of the mother. Antibody lgG can cross the placenta from mother to fetus.