Results 91 to 100 of about 538,668 (285)

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

open access: yesThe Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt   +5 more
wiley   +1 more source

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

open access: yesThe Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban   +3 more
wiley   +1 more source

An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation

open access: yesThe Anatomical Record, EarlyView.
Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski   +2 more
wiley   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

open access: yesThe Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom   +4 more
wiley   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

open access: yesThe Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham   +4 more
wiley   +1 more source

Evolutionary morphology of the haplorhine hamate

open access: yesThe Anatomical Record, EarlyView.
Abstract Primates adopt a variety of hand postures during an impressive diversity of locomotor and manipulative behaviors. Morphological research has found that elements of the hand skeleton, such as the hamate, hold key information for inferring hand use and locomotor kinematics in extinct species.
Laura E. Hunter   +4 more
wiley   +1 more source

Editorial Commentary: Shifting More Than Just the Anterior Capsulolabral Tissue—Changing the Outlook on the Surgical Outcomes of the Anterior Labroligamentous Periosteal Sleeve Avulsions Lesion

open access: yesArthroscopy, EarlyView.
Abstract Anterior labroligamentous periosteal sleeve avulsions, or “ALPSA” lesions, have been shown to have inferior clinical outcomes in prior literature, often attributed to their increased difficulty in restoration of anatomy at the time of surgery.
Cody Lee   +2 more
wiley   +1 more source

Palliative radiation therapy for superior vena cava syndrome in metastatic Wilms tumor using 10XFFF and 3D surface imaging to avoid anesthesia in a pediatric patient—a teaching case

open access: yesAdvances in Radiation Oncology, 2017
Jean-Claude M. Rwigema, MD   +5 more
doaj   +1 more source

82. Gender-Affirming Facial Feminization Surgery Improves Patient-Reported Psychosocial Outcomes

open access: yesPlastic and Reconstructive Surgery, Global Open, 2022
Rachel M. Caprini, BS   +5 more
doaj   +1 more source

Trochleoplasty Is Associated With High Rates of Patellofemoral Arthritis: A Systematic Review

open access: yesArthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To identify 2‐ to 5‐ and >10‐year complications of trochleoplasty and define rates of postoperative patellofemoral arthritis. Methods PubMed, Embase, and Web of Science were queried for terms related to trochleoplasty. Included studies were clinical studies using trochleoplasty to manage patellofemoral instability and were published in English ...
Cailan L. Feingold   +7 more
wiley   +1 more source

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