Sexual Dimorphism in the Foramen Magnum Dimensions

Sexual Dimorphism in the Foramen Magnum Dimensions

Alternative title Dimorfismo Sexual en las Dimensiones del Foramen Magno
Author Galdames, Ivan Claudio Suazo Autor UNIFESP Google Scholar
Russo, Priscilla Perez Autor UNIFESP Google Scholar
Matamala, Daniela Zavando Autor UNIFESP Google Scholar
Smith, Ricardo Luiz Autor UNIFESP Google Scholar
Institution Univ Talca
Universidade Federal de São Paulo (UNIFESP)
Abstract The purpose of this study is to assess the presence of sexual dimorphism in the foramen magnum size. We analyzed 211 human skulls from the collection of the Universidade Federal de Sao Paulo, with a record of sex and age determined using anteroposterior and transverse diameters of foramen magnum, and their differences by gender (p<0.05) were ascertained. Fischer linear discriminant function was calculated and the value for the classification of these variables was determined. All the dimensions were found to be higher, and in men's skulls, the foramen magnum size had low discriminating power and were accurately classified only in 66.5% skulls. Our results show that this quantitative indicator is of limited practical value and should be supplemented with qualitative indicators of sexual dimorphism in the occipital bone to improve the accuracy in the sex diagnosis.
Keywords Foramen magnum
Determination of sex
sexual Dimorphism
Anthropometrics
Fischer discriminant function
Language English
Date 2009-03-01
Published in International Journal Of Morphology. Temuco: Soc Chilena Anatomia, v. 27, n. 1, p. 21-23, 2009.
ISSN 0717-9502 (Sherpa/Romeo, impact factor)
Publisher Soc Chilena Anatomia
Extent 21-23
Origin http://dx.doi.org/10.4067/S0717-95022009000100003
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000266571500003
SciELO ID S0717-95022009000100003 (statistics in SciELO)
URI http://repositorio.unifesp.br/11600/44067

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