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The baby's little feet
Author(s): 
Pages: 60-63
Year: Issue:  2
Journal: Family & Child Care

Abstract: 小脚丫是这样长大的 宝宝小脚丫的发育历程 一般自孕4周开始,胚胎出现脚的芽胞,孕7周左右芽胞变成了脚,脚趾连在一起如同鸭掌.孕8周左右脚趾开始分开,并长出指甲,脚掌雏形形成.孕4个月起,脚的活动能力增强,能够做出踢、蹬等动作,孕妈妈开始有了胎动的感觉.孕6个月起脚部肌肉发育加快,孕妈妈隔着肚皮也能摸到宝宝小脚丫的轮廓了.
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