نتایج جستجو برای: cervical ribs

تعداد نتایج: 92708  

Journal: :American Journal of Neuroradiology 2012

Journal: :Folia morphologica 2017
Anda Maria Aignătoaei Cristina Elena Moldoveanu Irina Draga Căruntu Simona Eliza Giușcă Simona Partene Vicoleanu Alin Horațiu Nedelcu

BACKGROUND Congenital rib abnormalities are found in approximately 2% of the general population. Usually, they occur in isolation, when they are rarely symptomatic, but they can also associate with other malformations. MATERIALS AND METHODS We reviewed imaging examinations performed over a period of two years (2014-2015), enabling us to identify isolated rib abnormalities in six adult patient...

The ossification centers onset of the quail vertebrae, ribs, and sternum in embryos and hatchling birds was studied. Specimens were cleared, stained with Alcian Blue and Alizarin Red S and examined using stereomicroscope. The chondral rudiments of the vertebrae were observed at the 6th day of incubation (E6). The osteogenesis of the vertebrae was accomplished with both perichondral a...

Journal: :Developmental Medicine & Child Neurology 2011

Journal: :Genetics 2015
Andreas Kromik Reiner Ulrich Marian Kusenda Andrea Tipold Veronika M Stein Maren Hellige Peter Dziallas Frieder Hadlich Philipp Widmann Tom Goldammer Wolfgang Baumgärtner Jürgen Rehage Dierck Segelke Rosemarie Weikard Christa Kühn

A key common feature all but three known mammalian genera is the strict seven cervical vertebrae blueprint, suggesting the involvement of strong conserving selection forces during mammalian radiation. This is further supported by reports indicating that children with cervical ribs die before they reach reproductive age. Hypotheses were put up, associating cervical ribs (homeotic transformations...

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