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The Endowment for Human Development
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Sense of Smell


6 months, 2 weeks

From The Biology of Prenatal Development.Buy Now

Script: 嗅覺機能運作 所需要的全部成份 都在運作。 對早產嬰兒的研究 揭示受精後26週 覺察氣味的能力。

在羊水中放入甜的物質 增加胎兒的吞咽率。 相反,加入苦的物質 減少胎兒的吞咽率。 通常還有面部表情的變化。

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