Results 121 to 130 of about 118,023 (363)

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

Effects of stretch on chondrogenic differentiation of rat condylar fibrocartilage stem cells

open access: yesKouqiang hemian waike zazhi
[Objective:] To investigate the effect of mechanical stretch on the chondrogenic differentiation of rat condylar fibrocartilage stem cells (FCSCs). [Methods:] Triple-lineage induction was used to verify the multi-lineage differentiation ability of rat ...
GONG Wuyi, MI Xiaohui, LI Yongming
doaj   +1 more source

Expression of MMP-13 in Human Temporomandibular Joint Disc Derangement and Osteoarthritis [PDF]

open access: yes, 2017
Objective: MMP-13 performs digestion of collagen, which is a primary component of the temporomandibular joint (TMJ) articular disc. This study evaluated the expression of MMP-13 in patients with anterior disc displacement with (ADDwR) and without ...
Almeida, Luis Eduardo   +5 more
core   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

Osteochondroma of the mandibular condyle cured by conservative resection

open access: yesJournal of Dental Sciences, 2014
Osteochondroma (OC) is one of the most common benign tumors of the axial skeleton. However, it is rare in the facial skeleton and only a few cases have been reported to date.
Ousheng Liu   +7 more
doaj   +1 more source

Variations in the Skull of the Bearded Seal [PDF]

open access: yes, 1974
Fourteen measurements taken on 260 skulls are described and analysed using variance, covariance, reduced major axes, and discriminant functions. No sexual variation is found. Changes in relative growth with age are demonstrated and discussed.
Manning, T. H.
core  

The neck of Barosaurus was not only longer but also wider than those of Diplodocus and other diplodocines [PDF]

open access: yes, 2016
Barosaurus is a diplodocid sauropod from the Upper Jurassic Morrison Formation of the western United States, and is known for its very long neck. It is related to the sympatric Diplodocus, and often thought of as more or less identical except with a ...
Taylor, Michael P, Wedel, Mathew J.
core   +2 more sources

Mesenchymal Stem Cells and Platelet Gel Improve Bone Deposition within CAD-CAM Custom-Made Ceramic HA Scaffolds for Condyle Substitution

open access: yesBioMed Research International, 2013
Purpose. This study evaluated the efficacy of a regenerative approach using mesenchymal stem cells (MSCs) and CAD-CAM customized pure and porous hydroxyapatite (HA) scaffolds to replace the temporomandibular joint (TMJ) condyle. Methods.
L. Ciocca   +12 more
semanticscholar   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

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