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Search Results: 1 - 10 of 3111 matches for " Variant Anatomy "
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Aberrations of the Cervical Carotid Artery Which May Be Dangerous in Pharyngeal Surgery—A Computed Tomographic Study  [PDF]
Johannes Gossner, Ricarda Manka, Joerg Larsen
Advances in Computed Tomography (ACT) , 2013, DOI: 10.4236/act.2013.21006

Background: There are recognised variations in the anatomical course of the cervical portion of the internal carotid artery. An aberrant vessel with direct contact to the pharyngeal wall could easily be injured during pharyngeal surgery or may appear as a pharyngeal pseudo mass. Previous anatomical studies predominantly involved older patients. The prevalence of such variations which are at risk of injury during pharyngeal surgery has thus not been established in a general patient population. Material and Methods: The course of the internal carotid artery in relation to the oro and hypopharyngeal walls was retrospectively evaluated bilaterally by simple visual inspection and measurement of the smallest distance between the respective vessels and the adjacent mucosal surface of the pharyngeal wall in 138 consecutive contrast-enhanced computed tomography scans of the neck. Results: 11/138 (7.9%) of patients demonstrated relevant cervical carotid artery aberrations, comprising medial kinking of a vessel with asymmetry of the adjacent pharyngeal lumen and/or an intimate submucous course in the pharyngeal wall with no identifiable separating fat plane. This prevalence increased with age. Simple visual inspection correlated well with the measurement of the smallest distance between an artery and the pharyngeal wall, which was statistically significant (p < 0.0001). Conclusions: The prevalence of about 8% in a general patient population is higher than previously recorded in anatomical studies. Prevalence increases with age. Otorhinolaryngologists should be aware of such variation as a risk factor for haemorrhagic complications during pharyngeal surgery and as a differential diagnosis of pharyngeal mass lesions, especially in older patients. Modern contrast-enhanced CT allows identification and characterisation of any surgically relevant variant vascular anatomy in the pre-operative work-up.

Characters of the leaf and stem morpho-anatomy of Alternanthera brasiliana (L.) O. Kuntze, Amaranthaceae
Duarte, Márcia do Rocio;Debur, Maria do Carmo;
Revista Brasileira de Ciências Farmacêuticas , 2004, DOI: 10.1590/S1516-93322004000100013
Abstract: alternanthera brasiliana (l.) o. kuntze, amaranthaceae is a brazilian perennial herb employed as analgesic and anti-inflammatory in the traditional medicine. this work has analysed the morpho-anatomy of the leaf and stem, in order to supply knowledge to the medicinal plant identification. the botanical material was fixed, freehand sectioned and stained according to usual microtechniques. the leaves are simple, entire, decussate, oval-lanceolate and purple, presenting uniseriate epidermis, pluricellular non-glandular trichomes coated by papillose cuticle, anomocytic and diacytic stomata on both surfaces; the mesophyll is dorsiventral, with collateral vascular bundles and druses. the stem, in secondary growth, has the dermal system similar to the leaf; the angular collenchyma alternates with the chlorenchyma; it occurs druses and a cambial variant, consisting of concentrical arcs of extra-cambia outside the first cambium and aligned vascular bundles in the pith.
Exploring correlations among copy number variants  [PDF]
Joseph Abraham, Thomas LaFramboise
Open Journal of Genetics (OJGen) , 2012, DOI: 10.4236/ojgen.2012.23018
Abstract: There have been a great many recent studies investigating the extent of Copy Number Variation in the genomes of various species such as human, cattle, dogs and many others. The results from these studies indicate that the extent of the Copy Number Variation in the genome is considerable, and that in humans and in cattle, frequencies of different Copy Number Variants may differ in different breeds/ethnicities. This is not entirely unexpected as allele frequencies of certain loci vary with different breeds/ ethnicities/species and many known Copy Number Variants behave similarly to ordinary markers as regards Mendelian segregation. It is also well known in many instances, species/breeds/ethnicities show variation not only in marker allele frequencies, but also in the extent of Linkage Disequilibrium between markers. Thus it is worth investigating the extent of association between Copy Number Variants in different populations. In this paper we will investigate the extent of correlations between selected Copy Number Variants in different human populations and show that statistically significant correlations exist and are strongly population dependent.
Foramen Vertebral Lumbar Inconstante en Bos taurus
Lima,Martin; Pérez,William;
International Journal of Morphology , 2007, DOI: 10.4067/S0717-95022007000400034
Abstract: in veterinary anatomy the research of the foramina of the vertebral column is necessary for to expand our knowledge of systematic osteology, and for study of the vascularization of the vertebral column and spinal cord. the objective of this work is to inform about presence and characteristics of inconstant foramina found in bovine lumbar vertebrae. fifteen of 100 (15 %) of lumbar vertebrae presented foramina. all foramina were found at the body of lumbar vertebrae on their right lateral face. four of these vertebrae were lumbar 2 and three of them lumbar 5
Surface anatomy and prevalence of fibularis tertius muscle in a south-western Nigerian population  [PDF]
James Olumide Ashaolu, Oluwaseun Iretiolu Olorunyomi, Oluwole Adebayo Opabunmi, Victor Okoliko Ukwenya, Magnus Adebo Thomas
Forensic Medicine and Anatomy Research (FMAR) , 2013, DOI: 10.4236/fmar.2013.12005
Abstract: Fibularis tertius is a variant muscle of the leg that inserts in the foot. It has been implicated in providing clues to the evolution of upright posture in man. This work investigates the prevalence of fibularis tertius muscle in the African population, using south-western Nigeria as a sample population. The percentage prevalence of fibularis tertius muscle in the population studied is 63%, with higher prevalence in males compared to females. The muscle was however observed to present itself more on the right limb than on the left. Fifteen percent (15%) of the subjects had fibularis tertius muscle only on the right foot. Six percent (6%) had the muscle on the left foot only, 52% had it on both feet and 27% did not have the muscle on any of their foot. A unique surface positioning of the fibularis ter-tius tendon was also observed in all the subjectsstudied. These findings may provide contributions to the clinical evaluation of the muscle.
Monks as Model Men: Gender Anomalies or Heroic Ideal?  [PDF]
Aaron Thomas Raverty
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.56009
Abstract: The movie The Mask You Live In portrays gender socialization for men in the United States today as dominated by a trajectory emphasizing ruthless competition, a never-ending search for prestige in material wealth, and a largely self-serving quest to overcome and control women. The movie graphically depicts all the accompanying psychological dysfunction, legal difficulties, and emotional distress experienced by boys and young men desperately trying to conform to such a scripted model of masculinity. Anthropological research invites alternate ways of thinking about the relationship between sex and gender. This is especially true among those who claim a close relationship with the supernatural or transcendent. Can the methodology of cultural anthropology provisionally expand the consideration of gender variants to provide other ways of modeling masculinity without discarding the underlying gender binary altogether? Catholic Christian monastics—men and women who commit to communal devotional and service roles in the light of transcendent aims and ends—demonstrate the potential for providing healthier alternative masculinity scripts. More specifically, can monks successfully model and communicate such an alternative masculinity for men in a higher educational institutional setting?
Study on the Variant Pictograph of Dongba Script in Lijiang Area  [PDF]
Yin Zhou
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.611025
Abstract: Dongba scripture is an important pictograph, and the study of dongba script helps to study the origin and development of writing. Through Lijiang dongba scripture, we find there is a special way to create new script by the change of the script’s shape, called variant pictographs. This article researches on the variant pictograph.
The Unfulfillment or the Defective Achievement of Office Duties according to the New Criminal Code. Comparative Examination. Critical Comments
Ion Rusu
Acta Universitatis Danubius : Juridica , 2013,
Abstract: The aim of the research consists of the examination of the provisions of the New Criminal Code relating to the unfulfillment or the defective achievement of office duties, a comparative examination of the current provisions and building critical comments that would help improve the legislation in the matter. The paper continues further research in this area, which was published in national and international journals or conference proceedings. The concrete results of the research focuses on examining the new provisions on active and passive subjects of crime, to defining the railway accident, as comparative examination and some critical observations as well. The value of the research can be useful to practitioners in this field, theorists and to the Romanian legislator. The research consists of critical remarks and proposals for improving the content of the type offense and the completion of the aggravated variant.
Ansa cervicalis – without loop
Venugopal SP,Mallula SB
International Journal of Anatomical Variations , 2010,
Abstract: Ansa cervicalis which is an anastomosing loop formed by descendens hypoglossi and descendens cervicalis is known for its high degree of variation in its formation, course and branching. In the present case we report a variation in the course of descendens cervicalis which instead of lying anterolateral to the internal jugular vein lies medial to it and ends by supplying to superior belly of omohyoid without forming the loop with descendens hypoglossi. Also, before termination it gives branches to sternothyroid, sternohyoid and inferior belly of omohyoid. The descendens hypoglossi is normal in its origin but varies in its course by passing superficial to the common facial vein and terminates by supplying to the superior belly of omohyoid.
Variante anatómica: Tronco Carotídeo Común o Truncus Bicaroticus
Rodríguez Palomo,David; Brenes Pimentel,Adrián;
Medicina Legal de Costa Rica , 2011,
Abstract: this paper describes the presence of anatomical variation called common carotid trunk or truncus bicaroticus in one case incidental dissection at the school of medicine of universidad de ciencias médicas, presented in this variant less than 0.2% of the population. it also reviews the issue and its clinical importance.
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