International Journal of Anatomy and Research

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Type of Article: Original Research

Year: 2016 | Volume 4 | Issue 1 | Page No. 1854-1858

Date of Publication: 31-01-2016



Uday kumar *, Ratna Prabha J .

Assistant professor, Department of Anatomy, Navodaya Medical college, Hospital and research centre, Raichur, Karnataka, India.

Address: Dr Uday kumar, Assistant professor, Department of Anatomy, Navodaya Medical college, Hospital and research centre, Mantralayam road, Raichur, Karnataka, 584103. Mobile no. 8105199009


Aims and Objectives: Wormian bones are the accessory bones which are usually not present in all normal skulls. This study mainly aiming at the number, location of these accessory bones on human dry skulls. These bones should not be confused with fractures of skull.
Material and Methods: 200 dry skulls were examined with a naked eye. These skulls were collected from department of Anatomy, Students of Ist MBBS and Dental Students. All the skull were cleaned, dried properly and were looked for the presence of wormian bones in respect to its location, number. The data collected was tabulated and statistically analysed.
Results:In the present study, the incidence of wormian bones was seen in 113[56.5%] out of 200 skulls. We found maximum no. of wormian bones at lambdoid suture [64 skulls, 56.63%]. We also found such bones at Pterion[5.30%], Asterion[40.70%], ParietoTemporal suture[4.42%] and Occipitomastoid suture[6.19%] of skulls . In our study, we didn’t find any accessory bones at saggital, coronal suture and near bregma.
Conclusion: This study proved that presence of wormian bones is not uncommon. Frequently seen at the lambdoid suture. Such presence of sutural bones should not be confused to fractures. Neurosurgeons should keep in mind about such bones before performing craniotomy surgeries.
KEY WORDS: Cadaveric skulls, Extra bones, Sutures, Fontanella.


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Uday kumar, Ratna Prabha J. WORMIAN BONES: STUDY ON DRY HUMAN SKULLS IN NORTH KARNATAKA REGION. Int J Anat Res 2016;4(1):1854-1858. DOI: 10.16965/ijar.2015.351




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