Nancy is 8 months pregnant. Her physician mentioned that the placental LH-like hormone levels had decreased. Should Nancy be concerned?

A. Yes; a drop in the secretion of an LH-like substance this late in the pregnancy will disrupt normal embryonic development.
B. No; the placenta doesn't normally secrete an LH-like substance at any time during pregnancy.
C. Yes; the secretion of an LH-like substance by the placenta throughout the pregnancy is necessary to maintain the pregnancy.
D. No; the secretion of an LH-like substance by the placenta is important in the first trimester, and Nancy's pregnancy is beyond the first trimester.


Answer: D

Anatomy & Physiology

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