Observations on Symmetry and Sexual Dimorphism from Morphometrics of Foramen Magnum and Orbits In Adult Bengali Population

Biswas, Saswata Narayan; Chowdhuri, Soumeek; Das, Aniruddha; Mukhopadhyay, P.

doi:10.5958/0974-0848.2015.00090.1

Cited by 7 publications

(12 citation statements)

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“…The higher OI found among orbits of female subjects was similar to what has been reported in previous studies [ Table.5] conducted among different populations [6,10,15,22]. However, Biswas et al and Sangvicichien et al observed significantly higher OI in female than male skulls [4,19].…”

Section: Asymmetry In Oi (Table 4)supporting

confidence: 86%

“…Orbital index is essential for fossil records interpretation, classification of skull and understanding the trends in evolutionary and (90.31) in Bengali Indian skulls [4]. The orbital index in the present study is similar to Caucasians in which the orbits are of Mesoseme type [21].…”

Section: Methodssupporting

confidence: 59%

“…Nigerian and Sudanese orbits [4,3,6,11,17,20]. Ji et al in Chinese and Mekala et al in south Indian skulls however, observed ROI to be more than LOI [15,14].…”

Section: Asymmetry In Oi (Table 4)mentioning

confidence: 99%

“…resists fire, explosions and mutilations.Sex ofan individual can be identified accurately in 90% of casesusing skull alone and in 98% cases using pelvis and skull together [1]. Among other parts, orbits also show sexual dimorphism,male orbits are square,relatively smaller while orbit of female skulls are usually rounder and relatively larger [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Morphometric Analysis of Orbit in Indian Skulls and Comparison With International Studies

Dhanwate¹,

Gaikwad²

2016

IJAR

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Morphometric analysis of skull is of great significance to anatomists, radiologists and medicolegal experts. Skull resists decomposition and is the preferred bone for identification of sex of an individual. Among several parameters, orbital measurements also show sexual dimorphism. Assessment of orbital dimensions is also important for surgical management of pathologies around orbit. Previous studies present large variations in orbital morphometry due to genetic and environmental factors, racial and ethnic differences, different measurement methods and sample size. Thus to obtain population specific standards, to assess the bilateral asymmetry and gender differences in orbital parameters, the present study was conducted. Materials and Methods: The study was performed on 98 adult Indian skulls (196 orbits) consisting of 60 male and 38 female skulls ofknown age and sex. Parameters measured were Orbital height (OH), Orbital breadth (OB) and Orbital Index (OI) which were expressed in descriptive statistics i.e. mean, range and standard deviation. Results: In the present study, in males, the mean OH for the right and left sides were 32.64±2.07 and 32.39±2.18mm respectively while their OB were 37.52±1.35 and 37.08±1.96mm respectively and the mean OI was 87.47. In Females, the mean OH for the right and left sides were 32.55±1.91 and 32.31±1.55mm respectively while their OB were 37.25±1.64 and 36.67±1.56mm respectively and the mean OI was 87.88. Conclusion: The mean OI in the present study was 87.47 placing the Indian population in Mesoseme group. Difference in orbital breadth on two sides was statistically significant emphasizing bilateral asymmetry. However the gender differences in OH, OB and OI were statistically insignificant.

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Section: Asymmetry In Oi (Table 4)supporting

confidence: 86%

Section: Methodssupporting

confidence: 59%

“…Nigerian and Sudanese orbits [4,3,6,11,17,20]. Ji et al in Chinese and Mekala et al in south Indian skulls however, observed ROI to be more than LOI [15,14].…”

Section: Asymmetry In Oi (Table 4)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphometric Analysis of Orbit in Indian Skulls and Comparison With International Studies

Dhanwate¹,

Gaikwad²

2016

IJAR

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“…Orbital measurements can be used to create a new data collection for a given population (Birkby 1966;Baughan and Demirjian 1978;Franklin et al 2005;Kaya et al 2014). The morphology of the orbit has been used to differentiate between male and female skull (Calcagno 1981;Buikstra and Ubelaker 1994;Bruzek and Murail 2006;Biswas et al 2015). Earlier works have also revealed pragmatic application of morphometry of orbits in the determination of sex in South African (Dayal et al 2008), Balkan (Đurić et al 2005) and Indian (Jain et al 2016) skulls.…”

Section: Introductionmentioning

confidence: 99%

Determination of sex from the morphometry of orbits in adult skull of contemporary eastern Indian population

Sarkar

Mukhopadhyay

2018

Egypt J Forensic Sci

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Background: Determination of sex from the structure of orbits in the human skull is well documented. Both morphology and morphometry of the orbits have application in the determination of sex in skeletal remains. These parameters are often population-specific and warrant research on a regional basis. The present study was conducted to examine the sexual dimorphism of orbits in eastern Indian population. It was designed with the objective to determine the sex of the skull from the linear dimensions of orbits by deriving a specific multivariate function for classification. Materials and methods: The investigation was conducted on a series of 92 human skulls (61 males and 31 females). The orbital height (OH) and breadth (OB) were measured by using digital vernier calliper. Data analysis was performed by computing descriptive statistics like mean, standard deviation and range. Linear discriminant function analysis was carried out to derive a classification model. Results: It was noted that the orbital dimensions were more in females than in males. A multivariate function was derived from the discriminant function analysis. The estimated sectioning point or cut off score was calculated to be-0. 141. If the score of the function was more than-0.141, then sex can be assigned as male. On the other hand, if it was less than-0.141, then it was female. Likewise, sex could be correctly assigned in 68.5% of the cases by this method. Conclusion: This study provides useful baseline orbital morphometric data for East Indian population. When applied in sex determination, this multivariate model returns 68.5% correct classification. It will be useful and easy populationspecific method of sex determination from human skulls. This morphometric data can be used in further forensic research involving identification from skeletal remains.

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Morphometric and volumetric evaluations of orbit using three-dimensional computed tomography in southwestern Iranian population

Khani

Fazelinejad

Hanafi

et al. 2023

Translational Research in Anatomy

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Observations on Symmetry and Sexual Dimorphism from Morphometrics of Foramen Magnum and Orbits In Adult Bengali Population

Cited by 7 publications

References 0 publications

Morphometric Analysis of Orbit in Indian Skulls and Comparison With International Studies

Morphometric Analysis of Orbit in Indian Skulls and Comparison With International Studies

Determination of sex from the morphometry of orbits in adult skull of contemporary eastern Indian population

Morphometric and volumetric evaluations of orbit using three-dimensional computed tomography in southwestern Iranian population

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