You can often feel bones through your skin. Feel your head. Doesn't it feel like a helmet or a hard hat? In a way, it is. This is your skull
. Your skull is made of 29 bones.
Your skull starts out as individual bones. Then the skull fuses together as a baby grows.
is the bowl-shaped, top part of your skull. It protects the brain. It is made of eight smooth bones that fit together tightly. The bones are curved and thin.
Between an infant's cranial bones there are gaps called fontanels
. These gaps are covered by a tough membrane instead of bone. This allows the cranium to be squeezed as the baby passes through the birth canal.Paragraphs 5 to 11:
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