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Morphological Integration of the Modern Human Mandible during Ontogeny

Craniofacial integration is prevalent in anatomical modernity research. Little investigation has been done on mandibular integration. Integration patterns were quantified in a longitudinal modern human sample of mandibles. This integration pattern is one of modularization between the alveolar and mu...

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Autor principal: Polanski, Joshua M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE-Hindawi Access to Research 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3119498/
https://www.ncbi.nlm.nih.gov/pubmed/21716741
http://dx.doi.org/10.4061/2011/545879
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author Polanski, Joshua M.
author_facet Polanski, Joshua M.
author_sort Polanski, Joshua M.
collection PubMed
description Craniofacial integration is prevalent in anatomical modernity research. Little investigation has been done on mandibular integration. Integration patterns were quantified in a longitudinal modern human sample of mandibles. This integration pattern is one of modularization between the alveolar and muscle attachment regions, but with age-specific differences. The ascending ramus and nonalveolar portions of the corpus remain integrated throughout ontogeny. The alveolar region is dynamic, becoming modularized according to the needs of the mandible at a particular developmental stage. Early in ontogeny, this modularity reflects the need for space for the developing dentition; later, modularity is more reflective of mastication. The overall pattern of modern human mandibular integration follows the integration pattern seen in other mammals, including chimpanzees. Given the differences in craniofacial integration patterns between humans and chimpanzees, but the similarities in mandibular integration, it is likely that the mandible has played the more passive role in hominin skull evolution.
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spelling pubmed-31194982011-06-28 Morphological Integration of the Modern Human Mandible during Ontogeny Polanski, Joshua M. Int J Evol Biol Research Article Craniofacial integration is prevalent in anatomical modernity research. Little investigation has been done on mandibular integration. Integration patterns were quantified in a longitudinal modern human sample of mandibles. This integration pattern is one of modularization between the alveolar and muscle attachment regions, but with age-specific differences. The ascending ramus and nonalveolar portions of the corpus remain integrated throughout ontogeny. The alveolar region is dynamic, becoming modularized according to the needs of the mandible at a particular developmental stage. Early in ontogeny, this modularity reflects the need for space for the developing dentition; later, modularity is more reflective of mastication. The overall pattern of modern human mandibular integration follows the integration pattern seen in other mammals, including chimpanzees. Given the differences in craniofacial integration patterns between humans and chimpanzees, but the similarities in mandibular integration, it is likely that the mandible has played the more passive role in hominin skull evolution. SAGE-Hindawi Access to Research 2011-04-26 /pmc/articles/PMC3119498/ /pubmed/21716741 http://dx.doi.org/10.4061/2011/545879 Text en Copyright © 2011 Joshua M. Polanski. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Polanski, Joshua M.
Morphological Integration of the Modern Human Mandible during Ontogeny
title Morphological Integration of the Modern Human Mandible during Ontogeny
title_full Morphological Integration of the Modern Human Mandible during Ontogeny
title_fullStr Morphological Integration of the Modern Human Mandible during Ontogeny
title_full_unstemmed Morphological Integration of the Modern Human Mandible during Ontogeny
title_short Morphological Integration of the Modern Human Mandible during Ontogeny
title_sort morphological integration of the modern human mandible during ontogeny
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3119498/
https://www.ncbi.nlm.nih.gov/pubmed/21716741
http://dx.doi.org/10.4061/2011/545879
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