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一岁和两岁的头围分别是多少厘米
更新时间: 2020-11-04 00:00:00  

一岁宝宝的头围是40cm,两岁宝宝的头围是46~48cm,头围是脑和颅骨发育的反映。胎儿头围是指绕胎头一周的最大长度,胎儿的头部从前面到后面最长的部分,通常情况下是从“前额的鼻根”到“后脑的枕骨隆突”的距离最长,所以一般头围就是从“前额的鼻根”到“后脑的枕骨隆突”绕一周的长度。

关键词: 别是 多少 厘米

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