Skull suture margin: The skull has about 17 growth centers that allow the bony material to grow/expand.Where two bone plates come close together is a suture line. There are prominent ones that run ear to ear and front to back over the top. Sometimes these are prominent in infants with thin hair & are normal. Rarely the ridges signal premature fusion of sutures but your doctor will check for this at checkups.
Answered 10/9/2016
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