Morphology of Vermian Fossa in South Indian Human Adult Skull Bones
Journal Title: International Journal of Anatomy Radiology and Surgery - Year 2017, Vol 6, Issue 3
Abstract
Introduction: The Vermian Fossa (VF), or middle cerebellar fossa of Verga, is a shallow depression found in the lower part of the internal occipital crest and, above it is the inferior part of the vermis of the cerebellum. The fossa is found occasionally on the dorsal aspect of the foramen magnum and it could be divided into an upper and lower part by a bony ridge of varying size. Aim: The present study has been attempted to analyse the morphological, morphometrical and incidence of vermian fossa in 50 dry skulls of South Indian adults. Materials and Methods: The study was conducted on 50 dry adult human skulls comprising of 32 cranial bases (with vault removed) and 18 occipital bones. The fossae were macroscopically classified as triangular (Type 1), quadrangular (Type 2) and atypical (Type 3). Results: Incidence of VF in the present study was 72%. The VF was identified in 36 skulls, 26 cranial base and 10 occipital bones, and was found absent in the remaining 14 skulls. Type 1 (triangular) VF was present in 29(80.56%) cases and vermian fossa of Type 2 (Quadrangular) was present in 4 cases (11.11%). Atypical or Type 3 cases were found in 3 cases (8.33%). The mean length and width of the fossae were 14.6 ± 4.1 mm and 12.6 ± 3.1 mm respectively. Conclusion: By having an accurate knowledge of the variability of the human skulls morphology and morphometry we can augment the diagnosis and therapeutic performance.
Authors and Affiliations
Rajasundaram Archana, Merlin Koshy Jinu, Bhaskaran Sathyapriya, William Moses Swamydason Johnson
Keywords
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- EP ID EP369700
- DOI 10.7860/IJARS/2017/26844:2291
- Views 155
- Downloads 0
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