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The Endowment for Human Development
The Endowment for Human Development
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The Fetal Period


9 weeks

From The Biology of Prenatal Development.Buy Now

Script: Lati igbati ọsẹ mẹjọ ba kọja, titi di opin iloyun, "ọmọ enia ti ndagbasoke ninu yi ni a npe ni fitọọsi,” itumọ eyiti nse "ọmọ ti a ko i tii bi." Ni akoko yi, eyiti a npe ni akoko fitọọsi, gbogbo ẹya-ara ọmọ naa yio dagbasoke sii, wọn yio si maa sisẹ.

All ages referenced to fertilization, not last menstrual period.
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