Sexual Dimorphism in the Foramen Magnum Dimensions

Date
2009-03-01Author
Galdames, Ivan Claudio Suazo [UNIFESP]
Russo, Priscilla Perez [UNIFESP]
Matamala, Daniela Zavando [UNIFESP]
Smith, Ricardo Luiz [UNIFESP]
Type
ArtigoISSN
0717-9502Is part of
International Journal Of MorphologyDOI
10.4067/S0717-95022009000100003Metadata
Show full item recordAlternative Title
Dimorfismo Sexual en las Dimensiones del Foramen MagnoAbstract
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.
Citation
International Journal Of Morphology. Temuco: Soc Chilena Anatomia, v. 27, n. 1, p. 21-23, 2009.Keywords
Foramen magnumDetermination of sex
sexual Dimorphism
Anthropometrics
Fischer discriminant function
Collections
- EPM - Artigos [17677]