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Development and three-dimensional morphology of the zygomaticotemporal suture in primate skulls

Curtis, Neil; Witzel, Ulrich; Fagan, Michael J.

Authors

Neil Curtis

Ulrich Witzel



Abstract

Cranial sutures are an essential part of the growing skull, allowing bones to increase in size during growth, with their morphology widely believed to be dictated by the forces and displacements that they experience. The zygomaticotemporal suture in primates is located in the relatively weak zygomatic arch, and externally it appears a very simple connection. However, large forces are almost certainly transmitted across this suture, suggesting that it requires some level of stability while also allowing controlled movements under high loading. Here we examine the 2- and 3-dimensional (3D) morphology of the zygomaticotemporal suture in an ontogenetic series of Macaca fascicularis skulls. High resolution microcomputed tomography data sets were examined, and virtual and physical 3D replicas were created to assess both structure and general stability. The zygomaticotemporal suture is much more complex than its external appearance suggests, with interlocking facets between the adjacent zygomatic and temporal bones. It appears as if some movement is permitted across the suture in younger animals, but as they approach adulthood the complexity of the suture's interlocking bone facets reaches a level where these movements become minimal.

Journal Article Type Article
Publication Date 2014
Journal Folia primatologica
Print ISSN 0015-5713
Electronic ISSN 1421-9980
Publisher Karger Publishers
Peer Reviewed Peer Reviewed
Volume 85
Issue 2
Pages 77-87
Institution Citation Curtis, N., Witzel, U., & Fagan, M. J. (2014). Development and three-dimensional morphology of the zygomaticotemporal suture in primate skulls. Folia primatologica, 85(2), 77-87. https://doi.org/10.1159/000357526
DOI https://doi.org/10.1159/000357526
Keywords Zygomaticotemporal suture, Zygomatic arch, Skull, Macaca, Microcomputed tomography, Suture morphology
Publisher URL http://www.karger.com/Article/Abstract/357526
Copyright Statement © 2014 S. Karger AG, Basel
Additional Information Copy of article first published in: Folia primatologica, 2014, v.85, issue 2.

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Copyright Statement
© 2014 S. Karger AG, Basel







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