It is possible that noteworthy changes occur in the skeleton and in the associated muscles and joints at the time of birth. Unfortunately, any of these changes—in particular, the biochemical and physiologic changes that may occur—would be difficult to assess.(2) Changes in the osseous skeleton for which most data are available concern such morphologically measurable parameters as the weight of the total osseous skeleton, the weight of its individual components, differentiated growth rates of parts of the skeleton, the gravimetric density of selected bones, and the percentage ash weight of individual bones or bone sets. In what follows, we shall present some findings from data that have been accumulated in our laboratory during the past several years.
KeywordsPerinatal Period Scatter Diagram Proportionate Weight Limb Bone Fetal Period
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