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The Endowment for Human Development
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Hormonal Stress Response


4 months, 1 week

From The Biology of Prenatal Development.Buy Now

Script: 4 NA BUWAN

Sa 16 na linggo, ang pamamaraan na may pagpapasok ng karayom sa tiyan ng fetus na nagtutulak sa hormonal stress response na naglalabas ng noradrenaline, o norepinephrine, sa daanan ng dugo.

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