Ms Clark PVMHS Fontanels As we grow bone replaces cartilage and fibrous membranes in many bones of our body This includes fontanels in an infants skull Fontanel membranecovered spot where bone formation is not yet complete found between cranial bones ID: 479211
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Slide1
The Fetal/Infant Skull
Ms Clark
PVMHSSlide2
Fontanels
As we grow, bone replaces cartilage and fibrous membranes in many bones of our body
This includes
fontanels
in an infant’s skull
Fontanel -
membrane-covered spot where bone formation is not yet complete – found between cranial bones
Allow the skull to be compressed during childbirthSlide3
Fontanels
Fontanels close between 2-24 months after birth (each one varies)
Eventually become sutures after ossificationSlide4
Anterior Fontanel
Located between the two parietal bones and the frontal bone
The “soft spot” on top of an infant’s headSlide5
Posterior Fontanel
Between two parietal bones and occipital boneSlide6
Anterolateral
Fontanel
On each side of the skull between frontal, parietal, temporal, and sphenoid boneSlide7
Posterolateral Fontanel
On each side of skull between parietal, occipital, and temporal bone