the fontanelle closes on a baby at dawn.
when do the fontanelle close on a baby?
at dawn
during birth, fontanelles enable the bony plates of the skull to flex, allowing the child's head to pass through the birth canal. the ossification of the bones of the skull causes the anterior fontanelle to close over by 9 to 18 months. the sphenoidal and posterior fontanelles close during the first few months of life. the closures eventually form the sutures of the neurocranium. other than the anterior and posterior fontanelles, the mastoid fontanelle and the sphenoidal fontanelle are also significant.





















































section::::structure.:closure.





















































in humans, the sequence of fontanelle closure is as follows:
fontanelle
fontanelle (disambiguation)





















































a fontanelle is a soft spot in the skull of a baby where the bones of the skull have not yet knit together, but normally will do so in time.





















































fontanelle may also refer to:





















































section::::places.





















































section::::places.:italy.





















































bullet::::- fontanelle (treviso), a town in italy





















































bullet::::- fontanelle cemetery, naples, italy





















































section::::places.:united states.





















































bullet::::- fontanelle, iowa, a city in the state of iowa





















































bullet::::- fontanelle, nebraska, an unincorporated area





















































bullet::::- fontanel mansion, a tourist attraction in tennessee





















































section::::other uses.





















































bullet::::- a small drinking water fountain in italy, such as the nasoni of rome
fontanelle (disambiguation)