Results 91 to 100 of about 940,897 (342)

A morphometric study of foramen transversarium of dried cervical vertebrae

, 2015
Background: Variation in number, size & shape of foramen transversarium affects the anatomical course of the vertebral vessels, which may cause pathological conditions like vertebrobasilar insufficiency.
Madhukar, P K, Rahman, S, Akhtar, M J, Kashyap, N   +3 more
core   +1 more source

A Rare Form of Microcephalic Primordial Dwarfism due to NSMCE2 Deficiency (Seckel Syndrome Type 10): A Report of Macular Involvement

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Biallelic variants in NSMCE2 (MMS21), which encodes the SUMO E3 ligase subunit of the SMC5/6 chromatin‐maintenance complex, have recently been implicated in microcephalic primordial dwarfism (MPD), corresponding to Seckel syndrome type 10 (OMIM #617246).
Cristina Peduto, Céline Huber, Clément Paya, Isabelle Audo, Nathalie Boddaert, Valérie Cormier‐Daire   +5 more
wiley   +1 more source

Influence of skeletal class in the morphology of cervical vertebrae: A study using cone beam computed tomography.

Angle Orthodontist, 2017
OBJECTIVES To quantify the prevalence of cervical vertebrae anomalies and to analyze any association between them and skeletal malocclusions or head posture positions in the same study.
Luela Aranitasi, B. Tarazona, N. Zamora, J. Gandía, V. Paredes   +4 more
semanticscholar   +1 more source

Spectrum of Congenital Anomalies in Myhre Syndrome—Insights Into Effects Brought by Altered TGF‐β Signaling via Gain‐of‐Function Variants in SMAD4

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Myhre syndrome is a rare genetic disorder characterized by progressive multisystem involvement. Gain‐of‐function missense heterozygous variants affecting the Ile500 residue and Arg496 residue of the SMAD4 gene are implicated in this condition.
Kawmadi Gunawardena, Alessandro De Falco, Deborah Osio, Eleanor Sherlock, Emma Kivuva, Erina Sasaki, Francis H. Sansbury, Nayana Lahiri, Patricia Foley, Sahar Mansour, Shane McKee, Tazeen Ashraf, Nicola Brunetti‐Pierri, Usha Kini   +13 more
wiley   +1 more source

Morphometric analysis of the uncinate processes of the cervical vertebrae.

Folia Morphologica, 2017
BACKGROUND Uncinate processes (UPs) are distinct features unique to cervical vertebrae. They are consistently found on posterolateral aspect of the superior end plate of 3rd to 7th cervical vertebrae.
N. Kocabıyık, N. Erçıktı, S. Tunalı   +2 more
semanticscholar   +1 more source

Revisiting paravertebral muscles in European rabbits (Oryctolagus cuniculus) and European brown hares (Lepus europaeus) (Leporidae; Lagomorpha)

The Anatomical Record, EarlyView.
Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen, Emma Sherratt, Philip Stott, Rachel Norris   +3 more
wiley   +1 more source

Skull base bone hyperpneumatization

Journal of the Belgian Society of Radiology, 2013
A 50-year-old male with a long standing history of compulsive Valsalva maneuvers, complaining of episodes of vertigo underwent head computed tomography. Axial CT slices at the level of the skull base (Fig. A) and the first cervical vertebrae (Fig.
E J Houet, L M Kouokam, A L Nchimi
doaj   +1 more source

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

The 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, Alberto Martín‐Serra, Alejandro Pérez‐Ramos, Borja Figueirido   +3 more
wiley   +1 more source

Breaking evolutionary and pleiotropic constraints in mammals: On sloths, manatees and homeotic mutations

EvoDevo, 2011
Background Mammals as a rule have seven cervical vertebrae, except for sloths and manatees. Bateson proposed that the change in the number of cervical vertebrae in sloths is due to homeotic transformations. A recent hypothesis proposes that the number of
Varela-Lasheras Irma, Bakker Alexander J, van der Mije Steven D, Metz Johan AJ, van Alphen Joris, Galis Frietson   +5 more
doaj   +1 more source

Fossil evidence and stages of elongation of the Giraffa camelopardalis neck [PDF]

Royal Society Open Science, 2015
Several evolutionary theories have been proposed to explain the adaptation of the long giraffe neck; however, few studies examine the fossil cervical vertebrae. We incorporate extinct giraffids, and the okapi and giraffe cervical vertebral specimens in a
Melinda Danowitz, Aleksandr Vasilyev, Victoria Kortlandt, Nikos Solounias   +3 more
doaj   +1 more source