Results 51 to 60 of about 264 (220)

Osteocondroma cervical y mielopatía en niños: reporte de un caso y revisión de la bibliografía

Revista de la Asociación Argentina de Ortopedia y Traumatología
El osteocondroma es el tumor benigno más común del esqueleto. La columna cervical es la ubicación más frecuente para el osteocondroma espinal. Las exostosis espinales surgen, con más frecuencia, de las vértebras cervicales, aparecen típicamente en la ...
Santiago Aguer, Javier Dal Lago, Matías Leonardo Cullari, Facundo Aguirre, Eduardo Levy, Ruy Lloyd   +5 more
doaj   +1 more source

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

The 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, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Avaliação radiológica e funcional dos pacientes com fratura da coluna cervical subaxial La evaluación radiológica y funcional de los pacientes con fracturas de la columna cervical subaxial Functional and radiological assessment of patients with subaxial cervical fractures

Coluna/Columna, 2009
OBJETIVO: Avaliar 17 pacientes portadores de fratura luxação da coluna cervical (C3 a C7), que foram tratados em um período de dois anos. Os pacientes foram avaliados com parâmetros radiológicos, clínicos e funcionais.
Fabiano Ricardo de Tavares Canto, Paulo Roberto Santos Neto, Ilton José Carrilho de Castro, Roberto Sérgio de Tavares Canto, Hector Abreu dos Santos, Marcus Vinicius Martins do Nascimento   +5 more
doaj   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

The Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Unfused transverse foramen of the atlas vertebra in the Neandertal lineage fossils

The Anatomical Record, EarlyView.
Abstract In anatomically modern humans, the atlas can display an unfused transverse foramen (UTF) but currently the presence of UTF in the Neandertal lineage is uncertain due to a scarcity of prevalence studies and no exhaustive record of its presence throughout the entire hominin fossil record.
Asier Gómez‐Olivencia, Mikel Arlegi, Juan José Valenzuela‐Fuenzalida, Mathias Orellana‐Donoso, Juan Luis Arsuaga, Juan A. Sanchis‐Gimeno   +5 more
wiley   +1 more source

Una nueva especie del género Megapaloelodus (Aves: Phoenicopteridae: Palaelodinae) del Mioceno Superior del noroeste de Argentina A new species of the genus Megapaleolodus (Aves: Phoenicopteridae: Palaelodinae) from the Upper Miocene of Northwestern Argentina

Revista del Museo Argentino de Ciencias Naturales, 2009
En el presente artículo se describe una nueva especie del género Megapaloelodus. Esta nueva especie, nominada como M. peiranoi nov. sp. fue encontrada en capas aflorantes de la Formación Andalhualá (Mioceno superior), en la provincia de Catamarca ...
Federico L. Agnolin
doaj  

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Indicadores de maduración esquelética y dental en pacientes de ortodoncia con menarquía Indicators of skeletal and dental maturation in orthodontics patients presenting menarche

Revista Cubana de Estomatología, 2012
El propósito del presente trabajo fue determinar según la menarquía: la edad ósea, los estadios de maduración esquelética, los estadios de maduración de las vértebras cervicales y los estadios de calcificación del canino y el segundo premolar ...
Gladia Toledo Mayarí
doaj