Incidence of Bregmatic bone in north Indian Skulls
Incidence of Bregmatic bone in north Indian Skulls
Keywords:
Bregmatic bone, Sutural bone, wormian boneAbstract
Background and objective: Studies of non-meteric cranial variants have been a field of considerable interest to research workers specially because of their racial and regional importance. Supernumerary ossicles (or Wormian bones) of the cranial vault are formations associated with insufficient rate of suture closure. It was reported that there exists racial variability among the incidence of these bones. Material and methods: Studies of fifty north Indian skulls of Rohilkhand Medical College Bareilly and Shri Ram MurtiSmarak Institute of Medical Sciences, Bareilly, U.P. were studied for the incidence of Bregmatic bone cranial variant. Results: In our study the incidence of bregmatic bone was 4%, which was higher than reported elsewhere. Conclusion: The findings are discussed in the light of available literature and are of considerable racial and regional significance. We believe that the knowledge of bregmatic bone is of importance to the neuroanatomists, neurosurgeons, radiologists, anthropologists, paediatricians and morphologists
References
2. Williams PL, Bannister LH, Berry MM et al. Gray’s Anatomy. 38th ed. Churchill Livingstone. 1999 : 606
3. Bergman RA, Afifi AK, Miyauchi R. Compendium of human anatomical variations. Baltimore, Urban and Schwarzenberg. 1988; 197–205.
4. Parker CA. Wormian bones. Chicago: Robert Press, 1905.
5. Malhotra VK, Tewari PS, Pandey SN, Tewari SP. Interparietal bone. Acta Anat. 1978; 101: 94–96.
6. Pryles CV, Khan AJ. Wormian bones. A marker of CNS abnormality. Am. J. Dis. Child. 1979; 133: 380–382.
7. Saxena SK, Chowdhary DS, Jain SP. Interparietal bones in Nigerian skulls. J. Anat. 1986; 144: 235–237.
8. Nayak S. Presence of wormian bone at Bregma and Paired frontal bone in an Indian Skull. Neuroanatomy 2006; 5: 42-43
9. Berry AC, Berry RJ. Epigenetic Variation in the human Cranium. J. Anat 1967; 101: 361-380.
10. O’Loughlin VD. Effects of different kinds of cranial deformation on the incidence of Wormian bones. Am J Phys Anthropol 2004; 123:146–155
11. Hauser G, De Stefano GF. Epigenetic variants ofthe human skull. Schweizerbartsche Verlagsbuchandlung, Stuttgart 1989
12. Hauser G, Bergman P. Some biological and methodological problems of asymmetrical development; illustrated with reference to sutural bones. Anthropol Anzeiger 1984; 42:101–116
13. Murlimanju BV, Prabhu LV, Ashraf CM, Kumar CG, Rai R, Maheshwari C. Morphological and topographical study of Wormian bones in cadaver dry skulls 2011; J. Morphol. Sci 28(3): 176-179
