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《Chinese Journal of Anatomy》 2015-04
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Sexual dimorphism of the piriform aperture in adults based on euclidean distance matrix analysis

Zhai Guiying;Ren Fu;Institute of Anthropology,Liaoning Medical University;  
Objective:To study the sexual difference of the piriform aperture in adults of Han nationality from Liaoning province through the analysis of the space form of the piriform aperture.Methods:3D skulls were extracted from 206(males100,females 106) CT scanned data of Han nationality in Liaoning province by using VG Studio 2.2 MAX software,and 3D coordinates of the piriform aperture were collected with this software.WinEDMA software was used for the analysis of the sexual difference of the piriform aperture.Finally,we compared the male piriform aperture and female piriform aperture by using Geomagic Wrap 12 software according to the deviation analysis.Results:EDMA results showed that there were significant form differences between the male piriform aperture and the female piriform aperture.Bootstrap test showed that T=1.265,P=0.021.Analysis also showed that there were 16(57%) FDMs with a ratio lower than 0.95 and 1(4%) with a ratio higher than 1.05,which indicated the sexual difference.The ratios between females and males of the height in piriform aperture equaled to 0.896,which was less than 1.The ratios between females and males in terms of the maximum width in piriform aperture equaled to 1.The ratios between females and males in terms of the neck width in piriform aperture equaled to 1.067,which was higher than 1.Conclusion:There are significant sexual differences in the piriform aperture of Han nationality from Liaoning province.The form of the piriform aperture is high and narrow in males,but is low and round in females.
【CateGory Index】: D919
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【Citations】
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【Co-citations】
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1 Zhai Guiying;Ren Fu;Institute of Anthropology,Liaoning Medical University;;Sexual dimorphism of the piriform aperture in adults based on euclidean distance matrix analysis[J];解剖学杂志;2015-04
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