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The Endowment for Human Development
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Motion and Sensation


9 weeks

From The Biology of Prenatal Development.Buy Now

Script: 胎兒也可以抓住物體、 把頭向前或者向後移動、 開、合顎、移動舌頭、 嘆氣和伸展。

面部、雙手的手掌 以及雙腳腳底 的神經感受器能夠 感覺輕微接觸。

"作為對腳底輕微接觸的反應", 胎兒會彎曲髖和膝蓋, 可能彎曲腳趾。

All ages referenced to fertilization, not last menstrual period.
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