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dc.contributor.advisorHolliday, Casey M.eng
dc.contributor.authorSellers, Kaleb Craigeng
dc.date.issued2015eng
dc.date.submitted2015 Summereng
dc.description.abstract3D computational modeling offers researchers tools to investigate forces in the skull during feeding and other behaviors. The American alligator and other crocodylians generate the highest bite forces among vertebrates, leading to their ecological and evolutionary success. Because the platyrostral skulls of alligators require substantial mediolateral components of muscle forces, accurately modeling cranial forces requires the use of three-dimensionally accurate anatomical data. However, many previous modeling studies were carried out in two dimensions, ignoring the mediolateral aspect of force. To test the utility of 3D models in estimating cranial function, I used CT scanning developed 3D lever and finite element analyses (FEA) and applied them to an ontogenetic series of alligators. Dissection and CT scanning were used to model muscle forces, and 3D lever analyses and FEA were used to model joint reaction forces and bite forces. To validate these modeling techniques, I compared calculated bite forces to those measured in vivo in Alligator mississippiensis. Modeled forces matche\d in vivo data well and scaling patterns of input and output forces were determined. My results show that these techniques accurately predict forces in the skulls of crocodylians, and can be used in studies involving fossil and extant crocodyliform taxa as well as other vertebrate species.eng
dc.identifier.urihttps://hdl.handle.net/10355/50177
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.sourceSubmitted by University of Missouri--Columbia Graduate School.eng
dc.titleComputational modeling, ontogeny, and biomechanics of cranial forces in Alligator mississippiensiseng
dc.typeThesiseng
thesis.degree.disciplinePathology (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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