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Normal prenatal development of the human parietal bone and interparietal suture
A M Silau1, B Fischer Hansen, I Kjaer
1Department of Orthodontics, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark.
Journal of Craniofacial Genetics and Developmental Biology
|April 1, 1995
Summary
This study details normal prenatal human parietal bone development and interparietal suture formation. Understanding this osseous morphology is key for diagnosing developmental abnormalities.
Area of Science:
- Embryology
- Osteology
- Human Anatomy
Background:
- Prenatal development of the human skull involves complex bone formation and suture development.
- Understanding normal ossification patterns is crucial for identifying congenital abnormalities.
Purpose of the Study:
- To describe the prenatal development of the human parietal bone and interparietal suture morphology.
- To establish a baseline for identifying pathological suture development.
Main Methods:
- Radiographic analysis of 15 normal human fetal calvariae.
- Focus on parietal tuber, interparietal (sagittal) suture, and frontal-parietal bone edge morphology.
Main Results:
- Identified a primary ossification center at the parietal tuber radiating uniform bone trabeculae.
- Observed transverse ossification corpora at the peripheral border of the parietal bone.
- Described the positional changes of these corpora relative to trabeculae in fetuses of varying sizes.
Conclusions:
- Detailed morphological patterns of normal parietal bone and interparietal suture development were elucidated.
- This foundational knowledge is essential for diagnosing and understanding abnormal suture development.