Incidence of wormian bones in the dried skull of Nigerian males
Journal Title: International Journal of Anatomical Variations - Year 2018, Vol 11, Issue 1
Abstract
Sutural (Wormian) bones are small bones that appear between or close to the cranial sutures. Various authors expressed their opinions about formation of these bones but most of them believe they are formed due to additional ossification centers in or close to the cranial sutures. They are considered to be a supplementary point of ossification without any vital role in supporting the cranium. In this present study we examined 22 skulls prepared from dissected male cadavers over a period of 5 years at the Department of Anatomy, Faculty of Basic Medical Sciences, Federal University Ndufu-Alike, Ikwo (FUNAI). There were 45.46% incidences of wormian bones as discovered in this study while 54.55% of the skulls had no sutural (wormian) bones present in them. 36.36% eight skulls out of the 22 skulls have wormian bones at the lambdoid suture. The incidence of epipteric bones at pterion was 9.09% as observed. We did not record any case of wormian bone in the coronal sutures, none in the squamosal sutures and also none in the sagital sutures of the skulls. There have been very few studies reporting the occurrence of sutural bones in the coronal, sagittal, and squamosal suture. Sutural (wormian) bones are seen in the study accounting for about 45.46% of the dissected cadavers.
Authors and Affiliations
Uchewa OO, Egwu OA, Nwajagu GI
Keywords
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