Results 61 to 70 of about 41,443 (218)

Redescription of †Eobrasilia coutoi (Metatheria: Polydolopimorphia), a unique sclerocarpophagous metatherian from the Palaeogene of South America: Systematic affinities, and paleoecological and evolutionary implications

The Anatomical Record, EarlyView.
Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro, Hugo Bampi, Ana C. Bernardes‐Dias, Lidiane Asevedo, João P. P. Araújo, Matheus R. Arêas, Alessandra S. Machado, Ricardo T. Lopes, Rafael C. Silva, Marina B. Soares, Gustavo R. Oliveira   +10 more
wiley   +1 more source

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source

Size-relationship between transverse and arcuate foramina of atlas vertebrae in a modern South African skeletal population sample

Translational Research in Anatomy
Background: This exploratory quantitative study examined the relationship between the transverse foramen (TF) and the anomalous arcuate foramen (AF) in the atlas vertebrae of a South African skeletal population comprising two cohorts, namely an AF ...
Glen J. Paton, Keegan G. Reynolds, Shahed Nalla   +2 more
doaj   +1 more source

Morphological adaptations of cervical vertebrae in plunge‐diving sulids

The Anatomical Record, EarlyView.
Abstract Foraging strategy frequently drives morphological diversification in birds. The plunge‐diving behavior of certain species makes the functional and ecological trade‐offs of variation in cervical vertebrae an especially intriguing question. This study compares cervical vertebrae across five plunge‐diving species and two non‐plunge‐diving species,
Megan L. Vandenberg, Alissa Perez, John Michael Racy, Adam P. Summers, Ed Habtour, Bart Boom   +5 more
wiley   +1 more source

Ocular morphology and morphometry of the great egret (Ardea alba): A comprehensive anatomical description

The Anatomical Record, EarlyView.
Abstract Ardea alba (Linnaeus, 1758) is widely distributed, yet knowledge of its ocular morphology remains limited. This study described the morphometry and morphology of the eyeball and its accessory glands in six specimens using radiography, morphometry, light and scanning electron microscopy, and 3D scanning.
Julia Vaz Feio, Max Alex Santos Ferreira, Iara Fernanda Lima do Espírito Santo, Elane Guerreiro Giese, Érika Branco, Antônio Basílio Guerreiro Junior, Ana Rita de Lima   +6 more
wiley   +1 more source

A workflow for 3D printing highly accurate, customized human skull models for anatomical education and clinical practice

Anatomical Sciences Education, EarlyView.
Our custom workflow creates anatomically accurate and diverse 3D skull models. Precise sex‐specific anatomical detail is ensured by CT‐based segmentation. Our models capture anatomical variations and pathologies. Our cost‐effective 3D printing workflow enhances model durability and fidelity.
Marina Moser, Michel Beyer, Magdalena Müller‐Gerbl, Sandra Blache, Florian M. Thieringer, Szilvia Mezey   +5 more
wiley   +1 more source

PONTICULUS POSTICUS OF THE ATLAS VERTEBRA

National Journal of Medical Research, 2011
Atlas is the first cervical vertebra. It articulates with the occipital bone above and the axis vertebra below. It plays an important role in movement of the skull and the neck. A rare variation of the atlas vertebra is found where the posterior arch of
Malukar Ojaswini , Vipul.P. Prajapati, S.K.Nagar   +2 more
doaj  

Chiari I Malformation: Review and Update of Current Treatment Options

Clinical Anatomy, EarlyView.
ABSTRACT The pathophysiology of Chiari malformation type I (CM‐I) is complex, involving structural abnormalities at the craniovertebral junction that result in herniation of the cerebellar tonsils through the foramen magnum. In this study, we aim to present and evaluate current treatment options for CM‐I, with a focus on evidence‐based clinical ...
Jordan J. Lo, Shuhei Shiino, Stephen Z. Shapiro, Brianna L. Hines, Noritaka Komune, Carmine Antonio Donofrio, Filippo Badaloni, Antonio Fioravanti, Joseph Lockwood, C. J. Bui, Aaron S. Dumont, R. Shane Tubbs   +11 more
wiley   +1 more source

Multiple coexisting variations of skull and cervical spine anatomy in a symptomatic patient — uncommon or uncommonly noticed? A CT-based case study

Folia Morphologica
BACKGROUND: Among many anatomical variations of the skull and cervical spine, some may be an underlying cause of a disease, while others remain clinically silent.
Izabela Zamojska, Joanna Jaworek-Troć, Bartosz Kołodziejczyk, Michał P. Zarzecki, Przemysław Pękala, Jerzy A. Walocha, Jarosław Zawiliński, Marcin Lipski   +7 more
doaj   +1 more source

Caecum hernia of foramen of Winslow

, 2023
editorial reviewedLa hernie du foramen de Winslow, ou hernie de Blandin, est une hernie interne rare, avec une présentation clinique non spécifique et son diagnostic peut être difficile. La hernie se produit au travers de l’hiatus omental, limité par
Postal, Alain, Legrand, Marc, Maillart, Jean-François, Arenas Sanchez Mara,, Van Boeckel, VIRGINIE   +4 more
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