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1 Department of Anatomy, School of Medicine, University of Southern California, Los Angeles, California 90033
The postnatal development of the anterior segment of the mandible was studied in the rat. A bar of cartilage was observed in the symphyseal region of a 1-day-old rat, which exhibited endochondral-like bone formation up to 21 days of age. Then the hyaline cartilage became transformed into fibrocartilage, which persisted in the midline of the adult rat mandible.
Submitted on March 7, 1969
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