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Hormonal Stress Response


 

4 months, 1 week

Buy NowFrom The Biology of Prenatal Development.

Script: By 16 weeks, procedures involving the insertion of a needle into the abdomen of the fetus trigger a hormonal stress response releasing noradrenaline, or norepinephrine, into the bloodstream.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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