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International Journal of Morphology

versión On-line ISSN 0717-9502


ORISH, C. N  y  DIDIA, B. C. Macrometric and Micrometric Study of Sexual Dimorphism in Foramina of Middle Crania Fossa of Adult Nigerians. Int. J. Morphol. [online]. 2010, vol.28, n.2, pp.519-524. ISSN 0717-9502.

We have measured the longitudinal, transverse diameters of optic canal, foramen rotundum, foramen ovale, foramen spinosum, to serve as a handy guideline to surgeons, to enhance the accuracy of sexing the cranium for anthropometric/medico-legal studies and for comparative analyses of values of the Nigerian population with those of the Caucasians. A total of 100 adult dry skulls 81 male, 19 female from departments of Anatomy of some Nigerian Universities were used. Automatic vernier caliper with a precision of 0.1mm was used. Data analysis was performed with Graph Pad Prism 3.0. A comparison was made of the means of the dimension using Student's T-test and analysis of variance. Sizes of foramina were not significantly different from that of Caucasians Our results show significant sexual dimorphism in the following parameters, the right transverse diameter of the FR in males was found to be significantly different from the females at p<0.05, there was a significant difference between the means of the left and right sides of the foramen ovale. The distance between right ovale and spinosum in males and females was found to be significantly different in both sexes. The effect of side on longitudinal diameter of foramen ovale FO of males showed a significant difference between the means of the left and right sides of the foramen ovale. A comparism of the distance between left optical canal and foramen rotundum showed a significant difference between the values obtained for males and the females at p< 0.05.

Palabras clave : Macrometric study; Micrometric study; Sexual dimorphism; Foramina; Middle crania fossa.

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