My Pregnancy - Week 33

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The bones in his or her skull are formed, but aren't fused. They actually don't fuse entirely until early a...
The bones in his or her skull are formed, but aren't fused. They actually don't fuse entirely until early adulthood, allowing room for his or her brain to grow throughout childhood. Because they aren't fused, the bones in his or her skull will be able to overlap, helping him or her to fit through the birth canal during delivery.
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