Sexual dimorphism in the human pelvis: Testing a new hypothesis
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/3763 https://doi.org/10.1016/j.jchb.2005.05.003 |
Resumo: | Sexual dimorphism in the human pelvis is inferentially related to parturition. Investigators disagree about the identification and obstetric significance of pelvic dimorphism. Benefiting from a large sample of complete skeletons from the Coimbra Identified Skeletal Collection, we show that the dimensions of the true pelvis (birth canal) that are most sexually dimorphic (that is, the dimensions of females are greater than males) are those which are related to biparietal deformation, which often leads to the death of the human neonate. These dimensions are: the anteroposterior diameter of the inlet (index of dimorphism=108.41), the transverse diameter of the bispinous midplane (index of dimorphism=117.13) and the transverse diameter of the outlet (index of dimorphism=112.3). Therefore, sexual dimorphism in the human pelvis is a reflection of differential selection on the two sexes. These results may stimulate further studies with a fresh approach regarding the fossil and comparative evidence for when and how the modern pattern of birth has evolved. |
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Sexual dimorphism in the human pelvis: Testing a new hypothesisSexual dimorphism in the human pelvis is inferentially related to parturition. Investigators disagree about the identification and obstetric significance of pelvic dimorphism. Benefiting from a large sample of complete skeletons from the Coimbra Identified Skeletal Collection, we show that the dimensions of the true pelvis (birth canal) that are most sexually dimorphic (that is, the dimensions of females are greater than males) are those which are related to biparietal deformation, which often leads to the death of the human neonate. These dimensions are: the anteroposterior diameter of the inlet (index of dimorphism=108.41), the transverse diameter of the bispinous midplane (index of dimorphism=117.13) and the transverse diameter of the outlet (index of dimorphism=112.3). Therefore, sexual dimorphism in the human pelvis is a reflection of differential selection on the two sexes. These results may stimulate further studies with a fresh approach regarding the fossil and comparative evidence for when and how the modern pattern of birth has evolved.http://www.sciencedirect.com/science/article/B7GW4-4GG8W5B-1/1/d5a210bbbf111453aceef7b3895130cb2005info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/3763http://hdl.handle.net/10316/3763https://doi.org/10.1016/j.jchb.2005.05.003engHOMO - Journal of Comparative Human Biology. 56:2 (2005) 153-160Correia, H.Balseiro, S.Areia, M. deinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-11-06T16:49:09Zoai:estudogeral.uc.pt:10316/3763Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:55:50.343815Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
title |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
spellingShingle |
Sexual dimorphism in the human pelvis: Testing a new hypothesis Correia, H. |
title_short |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
title_full |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
title_fullStr |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
title_full_unstemmed |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
title_sort |
Sexual dimorphism in the human pelvis: Testing a new hypothesis |
author |
Correia, H. |
author_facet |
Correia, H. Balseiro, S. Areia, M. de |
author_role |
author |
author2 |
Balseiro, S. Areia, M. de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Correia, H. Balseiro, S. Areia, M. de |
description |
Sexual dimorphism in the human pelvis is inferentially related to parturition. Investigators disagree about the identification and obstetric significance of pelvic dimorphism. Benefiting from a large sample of complete skeletons from the Coimbra Identified Skeletal Collection, we show that the dimensions of the true pelvis (birth canal) that are most sexually dimorphic (that is, the dimensions of females are greater than males) are those which are related to biparietal deformation, which often leads to the death of the human neonate. These dimensions are: the anteroposterior diameter of the inlet (index of dimorphism=108.41), the transverse diameter of the bispinous midplane (index of dimorphism=117.13) and the transverse diameter of the outlet (index of dimorphism=112.3). Therefore, sexual dimorphism in the human pelvis is a reflection of differential selection on the two sexes. These results may stimulate further studies with a fresh approach regarding the fossil and comparative evidence for when and how the modern pattern of birth has evolved. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/3763 http://hdl.handle.net/10316/3763 https://doi.org/10.1016/j.jchb.2005.05.003 |
url |
http://hdl.handle.net/10316/3763 https://doi.org/10.1016/j.jchb.2005.05.003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
HOMO - Journal of Comparative Human Biology. 56:2 (2005) 153-160 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
aplication/PDF |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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