Variations of the interparietal bone in man.
In an adult skull a pre-interparietal bone was found to be present in two symmetrical pieces on either side of the midline. This is the result of failure of fusion of a third pair of centres with each other on the midline. The possibilities of variations due to non-fusion of various pairs of the centres in the interparietal area and their differentiation from surrounding sutural bones are discussed.
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Department of Anatomy, Medical College of Pennsylvania, Philadelphia 19129.
D006801:Humans; D010012:Osteogenesis; D010294:Parietal Bone / Q000033:anatomy & histology*