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Variaciones Musculares del Cuello: Fascículo Accesorio del Músculo Elevador de la Escápula International Journal of Morphology
Tiznado,G; Bucarey,S; Hipp,J; Olave,E.
El músculo elevador de la escápula ha sido descrito como un músculo plano conformado por fascículos que se originan en los procesos transversos de C1 a C4. Sin embargo, se han descrito variaciones anatómicas de este músculo, que incluyen a sus fascículos vertebrales, orígenes en la cabeza o terminando en músculos vecinos a su inserción usual. Durante la disección rutinaria de un cadáver formolizado de un individuo masculino, chileno, de 75 años de edad, observamos en su lado izquierdo, un fascículo accesorio del músculo elevador de la escápula, el cual tenía su origen en la vértebra C5 y terminaba en la fascia del músculo serrato anterior. En ambos lados el músculo elevador de la escápula provino de las vértebras C1-C4. El fascículo accesorio se originó...
Tipo: Journal article Palavras-chave: Anatomía; Músculos; Músculo elevador de la escápula; Variación anatómica.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200005
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Variaciones temporales de parámetros físicos, químicos y biológicos de un lago de altura: el caso del lago Chungará RChHN
DORADOR,CRISTINA; PARDO,RODRIGO; VILA,IRMA.
RESUMEN El lago Chungará, es el más austral y de mayor altura de los lagos altoandinos, está ubicado a 4.520 m de altitud en el altiplano chileno (18º14' S, 69º09' O); es un lago polimíctico-frío, con origen tectónico- volcánico y 34 m de profundidad máxima. Presenta variaciones reducidas de temperatura entre profundidades y estaciones del año (4 a 11 ºC), el promedio de temperatura anual se ha incrementado en 1,2 ºC entre los períodos 1986-1987 y 1998-1999. Entre los mismos períodos se observó una disminución significativa en el volumen del lago (_6,58 %) y consecuentemente en la profundidad máxima. Conjuntamente la salinidad aumentó significativamente con valores máximos de 1.464 µmhos y 2.650 µmhos para cada período. Estos cambios pueden ser las causas...
Tipo: Journal article Palavras-chave: Volumen; Temperatura; Salinidad; Fitoplancton.
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000100002
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Variaciones Vasculares en Cavidad Abdominal y de Vías Urinarias: Presentación de Caso International Journal of Morphology
Ballesteros,L. E; Estupiñan,H. Y; Ballesteros,D. R.
Se presenta un raro caso de múltiples variaciones en la cavidad abdominal de un espécimen cadavérico de 50 años de género masculino, del laboratorio de anatomía de la Universidad Industrial de Santander (Bucaramanga-Colombia). Se observó variaciones arteriales (arteria renal adicional derecha y origen de la rama hepática derecha desde la arteria mesentérica superior), venosa (vena renal derecha adicional) y de vía urinaria (doble uréter en el lado derecho). Estas diversas variantes anatómicas además de suscitar interés académico, deben ser consideradas y descritas correctamente por los clínicos durante la realización de procedimientos quirúrgicos, radiológicos y de imágenes diagnósticas en la cavidad abdominal.
Tipo: Journal article Palavras-chave: Arteria renal derecha; Vena renal derecha; Rama derecha de arteria hepática; Uréter bífido.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100058
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Variant Anatomy of the Celiac Trunk and its Branches International Journal of Morphology
Sankar K,Devi; Bhanu P,Sharmila; Susan,P. J.
The knowledge of abdominal vascular anatomy is very important for surgeons and radiologists to perform many of the clinical diagnostic evaluations. The celiac trunk, one of the branches of the abdominal aorta shows numerous variations in its branching pattern and its branches. The present study is to demonstrate the rare branching pattern of celiac trunk, into hepatogastric and hepatosplenic trunks. The hepatogastric trunk divided into left gastric and accessory left hepatic arteries and the hepatosplenic into common hepatic and splenic artery. The inferior phrenic artery was arising from left gastric artery. The gastroduodenal artery divided into right gastroepiploic artery and a common trunk for right gastric and anterior superior pancreaticoduodenal...
Tipo: Journal article Palavras-chave: Celiac trunk; Hepatosplenic trunk; Hepatogastric trunk; Accessory hepatic artery.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200047
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Variant Inferior Root of Ansa Cervicalis International Journal of Morphology
Babu,B. Prakash.
Ansa cervicalis is a loop of nerves found in the anterior wall of the carotid sheath in the carotid triangle of neck innervating infrahyoid muscles. Its superior root has fibres from the first cervical nerve that leaves the hypoglossal nerve and joins the inferior root formed by the branches from the second and third cervical nerves. The two roots join to form ansa cervicalis. The ansa cervicalis nerve formation is relatively complex, as its course and location along the great vessels of the neck vary. In the present case on the left side of an adult male cadaver the inferior root was absent and the contributions from C2 and C3 were joining independently with the superior root of ansa to form ansa cervicalis. However no such variation was found in the ansa...
Tipo: Journal article Palavras-chave: Ansa cervicalis; Inferior root; Variation.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100040
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Variante de Arco Aórtico en Cadáver Humano International Journal of Morphology
Duque Parra,Jorge Eduardo; Estrada Pantoja,Sanny Lorena; Montenegro A,Álvaro.
Se muestra una variante anatómica de arco aórtico proyectado posteriormente hacia la derecha de la tráquea y del esófago que genera en sentido proximal-caudal una arteria carótida común izquierda, una arteria carótida común derecha, una arteria subclavia derecha y finalmente una arteria subclavia izquierda derivada posteriormente de la parte descendente de la aorta. Se muestra igualmente como consecuencia de la variante morfológica disminución del volumen aéreo circulante hacia y desde los bronquios debido a compresión traqueal con reducción de su diámetro.
Tipo: Journal article Palavras-chave: Variación anatómica; Arco aórtico derecho; Tráquea.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400030
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Variante Protrombótica C677T del Gen Metilenotetrahidrofolato Reductasa es un Biomarcador Molecular de Fallas de Implantación en Mujeres Chilenas Sometidas a Protocolos de Reproducción Asistida International Journal of Morphology
Guzmán,Neftalí; Jara,María José; Morales,Leslie; Sepúlveda,Carol; Guzmán,Dina; Henríquez,Hugo; García,Ricardo; Escalona,Juan; Ciuffardi,Italo.
Las fallas de implantación son consideradas una importante causa de infertilidad en mujeres sometidas a protocolos de Fecundación Asistida. Evidencia reciente sugiere que la presencia de variantes protrombóticas está asociada a diversos defectos obstétricos y falla reproductiva. Sin embargo, los resultados en diversas poblaciones son contradictorios. De acuerdo a esta evidencia, se evaluó la potencial asociación entre variantes protrombóticas y fallas de implantación en mujeres chilenas incluidas en protocolos de fecundación asistida. Un total de 180 mujeres, 80 pacientes sometidas a protocolos de reproducción asistida y 100 controles fueron incluidas en este estudio. La genotipificación molecular de variantes protrombóticas en genes candidatos fue...
Tipo: Journal article Palavras-chave: Infertilidad; Fallas de implantación; Biomarcador.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100008
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Variation in Clavicular Origin of Sternocleidomastoid Muscle International Journal of Morphology
Amorim Júnior,Adelmar Afonso de; Lins,Carla Cabral dos Santos Accioly; Cardoso,Ana Paula dos Santos; Damascena,Caroline Guimarães.
The sternocleidomastoid is a muscle with a great extension that occupies the cervical region and is extended obliquely from the head to the trunk. Its morphology is not uniform, once its ends are wide and slim while its medial edge is thick and narrow. The aim of our work was to relate a case of variation in clavicular origin of this muscle that was extended beyond the half of clavicle laterally, in both sides of the neck.
Tipo: Journal article Palavras-chave: Sternocleidomastoid muscle; Anatomical variation.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100013
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Variation in concentrations of major bioactive compounds in Prunella vulgaris L. related to plant parts and phenological stages Biol. Res.
Chen,Yuhang; Zhu,Zaibiao; Guo,Qiaosheng; Zhang,Lixia; Zhang,Xiaoming.
Prunella vulgaris L. (Labiatae) contains a variety of structurally diverse natural products, primarily rosmarinic acid (RA), ursolic acid (UA) and oleanolic acid (OA), which possess a wide array of biological properties. In the present study, P. vulgaris was harvested at three developmental stages (vegetative, full-flowering and mature-fruiting stages), dissected into stem and leaf tissues and assayed for chemical contents using high performance liquid chromatography. Significant changes in the concentrations of the major secondary metabolites (RA, UA and OA) were observed at the different development stages. The highest concentrations of RA, UA and OA were found at the full-flowering stage (15.83 mg/g dry weight (DW) RA, 1.77 mg/g DW UA and 0.65 mg/g DW...
Tipo: Journal article Palavras-chave: Prunella vulgaris L.; Ontogenetic and morphogenetic variation; Rosmarinic acid; Ursolic acid; Oleanolic acid.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000200009
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Variation in the Origin of Sternocleidomastoid Muscle: A Case Report International Journal of Morphology
Ramesh Rao,T; Vishnumaya,G; Prakashchandra,Shetty, K; Suresh,R.
A rare case of additional slip in the origin of the clavicular head of sternocleidomastoid muscle was found during our routine dissection, on both sides of the neck in an elderly male cadaver. However, on both side of the same muscle no such additional slip of origin was found at the sternal head of the sternocleidomastoid near its origin nor at its insertion of the muscle
Tipo: Journal article Palavras-chave: Sternocleidomastoid muscle; Anatomical variation.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300025
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Variation in the Origin of the Testicular Arteries and Drainage of the Right Testicular Vein International Journal of Morphology
Singh,Royana; Jaiswal,Amit; Shamal,S. N; Singh,S. P.
During routine dissection of a 42 year old male Indian cadaver posterior abdominal wall, variations in the testicular vessels were observed. The right testicular artery arose from the right accessory renal artery, which originated from the ventral aspect of the abdominal aorta. The left testicular artery originated from the ventral aspect of the aorta in almost the same horizontal line as the right accessory renal artery, just below the superior mesenteric artery and 1.79 cm, above the origin of the renal arteries. The right vein drained into the right accessory renal vein instead of the inferior vena cava, while the left testicular vein drained into the left renal vein. The presence of variation of both the testicular arteries as well as the testicular...
Tipo: Journal article Palavras-chave: Accessory Renal Artery; Renal artery; Renal vein; Testicular artery; Testicular Vein.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200052
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Variation in the Repair of a Rib Graft used for Mandibular Reconstruction after 20 years International Journal of Morphology
Pozzer,Leandro; Olate,Sergio; de Moraes,Márcio; Asprino,Luciana; Barbosa,José Ricardo de Albergaría.
Mandibular reconstruction has been used in the last 100 years as a safe, effective and stable technique. Various types of grafts have been used, including the autogenous rib graft; the normal repair of this type of graft has been defined in some studies although some observations have been made indicating low predictability of the growth of this bone. The aim of this study was to report the case of a patient with a rib graft for mandibular reconstruction where after 20 years cartilaginous tissue was observed exclusively in the absence of bone tissue. A 61-year-old female patient presented in the Oral and Maxillofacial Surgery Service for dental implants. The patient had a history of 4 previous mandibular reconstructions; imaging showed no alterations to...
Tipo: Journal article Palavras-chave: Bone graft; Rib graft; Bone repair.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200048
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Variation of Length of Styloid Process International Journal of Morphology
Lins,Carla Cabral dos Santos Accioly; Júnior,Adelmar Afonso de Amorim; Oliveira,Bruna Paloma de; Silva,Elma Mariana Verçosa de Melo; Torres,Raphaela Christianne Maia Soares.
The styloid process is a bony projection that arises from the tympanic portion of the temporal bone, and its elongation is considered an anomaly that may be related to calcification of the stylohyoid and stylomandibular ligaments, which can trigger a series of symptoms that characterize the Eagle's syndrome. The objective of this study was to report three cases of elongated styloid process seen in human skulls, trying to alert the dentists in the knowledge of this disease in order to include it in their diagnosis, associated with atypical facial pain or in the oral cavity of to facilitate better treatment for these cases.
Tipo: Journal article Palavras-chave: Anatomic variation; Maxillofacial abnormalities; Craniomandibular Disorders.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400046
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Variation of the Origin of Aortic Arch Branches: In Relationship with Plates of Atheroma International Journal of Morphology
Yeri,Luis A; Gómez,Jorge E; Fontaneto,Sergio; Espósito,Marcia.
The aortic arch branches variations have called the attention of several authors, who have handled studies and classifications, both human and in different animals. The common trunk, which is between the brachiocephalic trunk and the common left carotid artery, is the most common variation. We conducted a descriptive and randomized study of the presence of the trunk mentioned before, trying to establish the possible relationship between this variation and the distribution plates of atheroma. The lumen observation makes it possible to define and check the distribution of the ostium, among the common ostium and the ones with common trunks. Regarding the plates of atheroma, it was found that there is a slight prevalence in common trunks cases, with respect to...
Tipo: Journal article Palavras-chave: Aortic arch; Atheroma; Variations of the aortic arch branches.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100031
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Variation of water potential and trunk diameter answer as sensitivity to the water availability in table grapes Chilean J. Agric. Res.
Silva-Contreras,Claudio; Sellés-Von Schouwen,Gabriel; Ferreyra-Espada,Raul; Silva-Robledo,Herman.
Variation in trunk diameter (TDV) has been proposed as an indicator of the water status of grape vines, with apparently contradictory results. In Vitis vinifera L. var. Crimson Seedless we evaluated the water potential (Ψ), an indicator normally used to determine the water status of grapes, and TDV, comparing two irrigation treatments which restored 100% or 50% of the ETc, to compare the sensitivity of these two indicators to a decrease in soil water. Two evaluation periods of 23 d each were used, the first during the exponential growth phase and the second in the post-veraison period, when the trunk stops growing. In both periods TDV showed coefficients of variation greater than 25%, compared to the 7-10% recorded for water potential. However,...
Tipo: Journal article Palavras-chave: Water potential; Variable displacement sensor; Sensitivity; Itis vinifera.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400001
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Variation over time in the prevalences of three viruses of the grapevine leafroll complex in a commercial vineyard in south-central Chile Ciencia e Investigación Agraria
Mujica,María Valentina; Mora,Roxana; Rosales,Marlene; Sandoval,Claudio.
A vineyard in south-central Chile was surveyed during five growing seasons to analyze the increase over time in the number of plants infected with Grapevine leafroll-associated virus-1, -2 and -3. At the end of the study, GLRaV-3 was found to be the most prevalent virus, with 46% of plants infected by this pathogen. GLRaV-2 infected 13% of plants, and GLRaV-1 infected 12%. Considering all three viruses together, the prevalence of infection increased exponentially from 14% of the plants at the beginning of the study period to 68% at the end. The patterns of the spread of GLRaV-2 and GLRaV-3 were mostly along the rows, whereas the pattern of spread for GLRaV-1 could not be determined.
Tipo: Journal article Palavras-chave: Field transmission; Grapevine leafroll-associated virus; GLRaV-1; GLRaV-2; GLRaV-3; Virus diagnosis.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100012
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Variations in the Branching Pattern of the Celiac Trunk in a Kenyan Population International Journal of Morphology
Mburu,Kimani Stephen; Alexander,Ogeng'o Julius; Hassan,Saidi; Bernard,Ndung'u.
The celiac trunk is the major source of blood supply to the supracolic abdominal compartment. Usually, it branches into the splenic, common hepatic and left gastric arteries to supply this region. It has however been shown to display ethnic variations in its branching pattern. Knowledge of these variations may be important in surgical and radiological procedures around the head of the pancreas. The aim was to illustrate the commonest variations in the branching pattern of the celiac trunk in a Kenyan population. The study was conducted in the Department of Human Anatomy, University of Nairobi. Were collected one hundred twenty three (123) bodies obtained from dissection cadavers and autopsy cases following ethical approval and consent from next of kin....
Tipo: Journal article Palavras-chave: Celiac; Variations; Kenyans; Artery.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100028
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Variations in the Inter-lobar Fissures of Lungs Obtained from Cadavers of South Indian Origin International Journal of Morphology
Jacob,Suja Mary; Pillay,Minnie.
The proposed aim of the study was to elucidate the variations of the lung fissures and to correlate their importance in clinics. The study was conducted on 48 lung specimens, 30 right and 18 left, obtained from the cadavers of South Indian origin. Among the right-sided lungs, 2 specimens showed absence of horizontal fissure, and the remaining 25 showed incomplete horizontal fissure. Oblique fissure was incomplete in 15 lungs and one lung showed absence of oblique fissure. An accessory fissure was observed in 4 lungs. Among the left sided lungs, the oblique fissure was incomplete in 7 lungs. The presence of an accessory fissure was found in 5 lungs. With the development of radiological and endoscopic techniques and the advancement of pulmonary surgery, the...
Tipo: Journal article Palavras-chave: Oblique fissure; Horizontal fissure; Accessory fissure.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200022
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Variations in the Pattern of Formation of the Abdominis Rectus Muscle Sheath among Kenyans International Journal of Morphology
Mwachaka,P; Odula,P; Awori,K; Kaisha,W.
The pattern of formation of the human rectus sheath exhibits variations, it is not clear if these variations are population specific. This study aimed at describing the pattern of formation of the rectus sheath in a select Kenyan population. Formation of the rectus sheath was analyzed in eighty subjects (47 male, 33 female) during autopsies and cadaveric dissection. The anterior wall of the rectus sheath in all cases was aponeurotic and firmly attached to rectus abdominis muscle. The posterior wall of the rectus sheath was aponeurotic in 71 (88.5%) cases, the rest were musculoaponeurotic and only seen in males. In all cases the aponeurosis of internal oblique abdominis split into two lamina; a deep lamina that fused with the aponeurosis of transverses...
Tipo: Journal article Palavras-chave: Rectus sheath; Kenyans; Anterior abdominal wall.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400011
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Variations in The Vascular Supply of Pancreas and Transverse Colon: A Case Report International Journal of Morphology
Silva Júnior,L. M; Alexandre,M; Gonçalves,L; Silva,F. S; Caetano,A. G.
During anatomical dissection of the abdominal cavity of an adult male corpse, a changing pattern of vascular supply of pancreas and of the transverse colon was observed. The inferior pancreatic artery and the middle colic artery arose from a common trunk of the superior mesenteric artery. Moreover, the lienal artery did not direct a dorsal branch to the neck of the pancreas, but rather sent two greater pancreatic arteries (proximal and distal) to the body of the gland and one caudal artery to the terminal portion of the pancreas. We also observed a large communicating branch between the proximal portion of the middle colic artery and the ascending branch of the left colic artery, previously described as artery of Moskowitz. Based on these data, clinical...
Tipo: Journal article Palavras-chave: Anatomic variation; Blood supply; Pancreas; Large intestine.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100032
Registros recuperados: 9.178
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