Internal Bone Architecture in the Zygoma of Human and Pan

In this study, µCT is used to characterize trabecular bone morphometry in two separate regions of the zygoma of humans and Pan. Trabecular anisotropy and orientation are compared with strain orientations observed in trabecular regions of finite element models of four Pan crania. The results of this study show that trabecular bone morphometry, anisotropy, and orientation are highly compatible with strain orientation and magnitude in the finite element models. Trabecular bone in the zygoma is largely orthotropic (with bone orientation differing in three mutually orthogonal directions), with its primary orientation lying in the mediolateral direction. Trabecular bone in the zygomatic region appears to be highly influenced by the local strain environment, and thus may be closely linked to orofacial function. Anat Rec, 299:1704–1717, 2016. © 2016 Wiley Periodicals, Inc.

Source: The Anatomical Record Part A: Discoveries in Molecular, Cellular, and Evolutionary Biology - November 14, 2016 Category: Molecular Biology Authors: Leslie Pryor McIntosh, David S. Strait, Justin A. Ledogar, Amanda L. Smith, Callum F. Ross, Qian Wang, Lynne A. Opperman, Paul C. Dechow Tags: ARTICLE Source Type: research