| Independence of biomechanical forces and craniofacial pneumatization in Cebus. | |
| | |
MedLine Citation:
|
PMID: 18951480 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Several different factors have been hypothesized as explanations of variation in primate paranasal sinus size. Biomechanical forces, particularly those associated with mastication, are frequently evoked to account for differences in primate craniofacial pneumatization. To test whether masticatory stresses are responsible for maxillary sinus volume diversity, two platyrrhine species of the genus Cebus (C. apella and C. albifrons) were examined. The former has been identified as a hard object feeder, and many morphological differences between the two species are attributable to differences in the mechanical properties of their respective diets. Sinus volumes were derived from serial coronal CT scans of the crania of adults. Several external cranial measurements were used to scale sinus volume relative to the size of the face. Relative measures of maxillary sinus volume were compared using standard statistical techniques. In all comparisons, the two capuchin species do not differ from one another significantly at P < 0.05. Thus, this "natural experiment" fails to support the interpretation that biomechanical forces acting on the facial skeleton substantially affect the degree of paranasal pneumatization in primates. This result suggests that it is unlikely that the maxillary sinus performs any function in relation to masticatory stress; other factors must be responsible for the variation in sinus volume among primates. |
| | |
Authors:
|
Todd C Rae; Thomas Koppe |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Anatomical record (Hoboken, N.J. : 2007) Volume: 291 ISSN: 1932-8494 ISO Abbreviation: Anat Rec (Hoboken) Publication Date: 2008 Nov |
Date Detail:
|
Created Date: 2008-10-30 Completed Date: 2008-12-31 Revised Date: 2009-12-16 |
Medline Journal Info:
|
Nlm Unique ID: 101292775 Medline TA: Anat Rec (Hoboken) Country: United States |
Other Details:
|
Languages: eng Pagination: 1414-9 Citation Subset: IM |
Copyright Information:
|
Copyright 2008 Wiley-Liss, Inc. |
Affiliation:
|
Department of Anthropology, Evolutionary Anthropology Research Group, Durham University, Durham DH1 3HN, United Kingdom. T.Rae@roehampton.ac.uk |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Biomechanics* Body Temperature Regulation / physiology Cebus / anatomy & histology*, physiology* Face / anatomy & histology*, physiology* Humans Organ Size Postural Balance / physiology Skull / anatomy & histology*, physiology*, radiography Smell / physiology Tomography, X-Ray Computed Voice / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Fate of the nasal capsular cartilages in prenatal and perinatal tamarins (Saguinus geoffroyi) and ex...
Next Document: Development of the ethmoid sinus and extramural migration: the anatomical basis of this paranasal si...