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A morphogenetic model of cranial pneumatization based on the invasive tissue hypothesis


Zollikofer, C P E; Weissmann, J D (2008). A morphogenetic model of cranial pneumatization based on the invasive tissue hypothesis. Anatomical Record, 291(11):1446-1454.

Abstract

The interpretation of patterns of cranial pneumatization in terms of evolution, development, and function is controversial, because these structures exhibit extreme diversity and variability among and within taxa. However, there is general consensus that air-filled spaces are
formed by invasion of mucous epithelial tissue from the nasopharyngeal cavity into the surrounding cranial bones. This investigation presents a morphogenetic model of pneumatization, which combines empirical data about epithelial growth with physical concepts of surface growth. The study develops a minimum model that defines growth equations with a minimum number of system parameters to model the invasion of mucous tissue and air-filled spaces into the cancellous compartment of cranial bones. Computer simulations show that tuning a small set of model parameters permits generation of a wide diversity of morphologies mimicking natural air-filled spaces. Comparison of virtual with actual morphologies yields new insights into possible factors controlling the process of cranial pneumatization.

The interpretation of patterns of cranial pneumatization in terms of evolution, development, and function is controversial, because these structures exhibit extreme diversity and variability among and within taxa. However, there is general consensus that air-filled spaces are
formed by invasion of mucous epithelial tissue from the nasopharyngeal cavity into the surrounding cranial bones. This investigation presents a morphogenetic model of pneumatization, which combines empirical data about epithelial growth with physical concepts of surface growth. The study develops a minimum model that defines growth equations with a minimum number of system parameters to model the invasion of mucous tissue and air-filled spaces into the cancellous compartment of cranial bones. Computer simulations show that tuning a small set of model parameters permits generation of a wide diversity of morphologies mimicking natural air-filled spaces. Comparison of virtual with actual morphologies yields new insights into possible factors controlling the process of cranial pneumatization.

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22 citations in Web of Science®
23 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Anthropology
Dewey Decimal Classification:300 Social sciences, sociology & anthropology
Uncontrolled Keywords:paranasal sinus • cranial pneumatization • evolution
Language:English
Date:24 October 2008
Deposited On:29 Oct 2008 13:59
Last Modified:05 Apr 2016 12:30
Publisher:Wiley-Blackwell
ISSN:1932-8486
Additional Information:The attached file is a preprint (accepted version) of an article published in Anatomical Record 291(11) 2008, 1446-1454. Special Issue: The Paranasal Sinuses: The Last Frontier in Craniofacial Biology
Publisher DOI:10.1002/ar.20784
Official URL:http://www3.interscience.wiley.com/journal/121484203/abstract
Related URLs:http://www3.interscience.wiley.com (Publisher)
Permanent URL: http://doi.org/10.5167/uzh-4419

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