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| Registros recuperados: 11 | |
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| Pinheiro,Luane L.; Lima,Ana R.; Muniz,José A.P.C.; Imbeloni,Aline; Fioreto,Emerson T.; Fontes,Rodrigo F.; Cabral,Rosa; Branco,Érika. |
| The aim of this work is to study the morphological characteristics of the trachea of Saimiri sciureus through quantification and measurement of the cartilaginous rings, providing information to facilitate the election of more appropriate endotracheal tube, laryngeal mask or tracheostomy tube for anesthetic and emergency procedures, as it is a species of Neotropical primates most commonly used as biological models, and little is known about their morphology. Nine animals were investigated, being 4 adults and 5 young acquired from the Centro Nacional de Primatas (National Primate Center - CENP) - Ananindeua - PA, which died from natural causes and then fixed in aqueous buffered formalin 10%. Saimiri sciureus trachea comprises an average of 32.8 incomplete... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Emergency procedure; Morphology; Respiratory system; Saimiri sciureus; Trachea. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400012 |
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| Keyhanmanesh,Rana; Boskabady,Mohammad H. |
| In previous studies, the relaxant effect of Tymus vulgaris has been demonstrated on guinea pig tracheal chains. Therefore, in the present study, the relaxant effects of n-hexane, dichloromethane, methanol and aqueous fractions of Tymus vulgaris on tracheal chains of guinea pigs were examined. The relaxant effects of four cumulative concentrations of each fraction (0.4, 0.8, 1.2 and 1.6 g%) in comparison to saline as negative control and four cumulative concentrations of theophylline (0.2, 0.4, 0.6 and 0.8 mM) were examined for their relaxant effects on precontracted tracheal chains of guinea pig by 60 mM KCl (group 1) and 10 ìÌ methacholine (group 2, n = 7 for each group). In group 1, all concentrations of the n-hexane fraction and theophylline and three... |
| Tipo: Journal article |
Palavras-chave: Tymus vulgaris; Fractions; Relaxant effects; Guinea pig; Trachea. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000100009 |
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| KUEHNE,B.; JUNQUEIRA,L. C. U.. |
| The structure of the trachea and lung of Siphonops annulatus was studied in ten specimens of routinely fed animals. The trachea is constituted mainly by incomplete cartilage rings lined by a respiratory epithelium (ciliated and mucous cells) with variable morphology according to the region observed. A rich vascularization of this organ suggests its participation in blood-air gas exchange. The right lung in this species is developed and the left one is atrophied. This organ is constituted mainly by longitudinal septa formed by connective tissue, smooth muscle cells and blood capillaries. These structures are covered by pneumocytes of one type only, which present cytoplasmic particles that have been related with surfactant activity described in the lung of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gymnophiona; Siphonops; Trachea; Lung; Structure. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100019 |
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| Cunha,J.F.; Campestrini,F.D.; Calixto,J.B.; Scremin,A.; Paulino,N.. |
| We examined some of the mechanisms by which the aspirin metabolite and the naturally occurring metabolite gentisic acid induced relaxation of the guinea pig trachea in vitro. In preparations with or without epithelium and contracted by histamine, gentisic acid caused concentration-dependent and reproducible relaxation, with mean EC50 values of 18 µM and Emax of 100% (N = 10) or 20 µM and Emax of 92% (N = 10), respectively. The relaxation caused by gentisic acid was of slow onset in comparison to that caused by norepinephrine, theophylline or vasoactive intestinal peptide (VIP). The relative rank order of potency was: salbutamol 7.9 > VIP 7.0 > gentisic acid 4.7 > theophylline 3.7. Gentisic acid-induced relaxation was markedly reduced (24 ± 7.0, 43... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gentisic acid; Potassium channels; Vasoactive intestinal peptide; VIP; Trachea; Smooth muscle. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000300013 |
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| Prestes,Rafaela da Silveira; Santos,Flaviani Emilia dos; Souza,Izabela Patrício de; Marcelino,Sóstenes Apolo Correia; Torres,Renato Cesar Sacchetto; Malm,Christina; Freitas,Patrícia Maria Coletto; Beier,Suzane Lilian; Ecco,Roselene; Nepomuceno,Anelise Carvalho. |
| ABSTRACT: Tracheal avulsion is a condition seen in small animals and occurs as a result of a traumatic incident to the cervical and/or thoracic regions. The aim of this study is to report a case of tracheal avulsion in a cat using imaging examinations for diagnostic investigation. In this report, we examined an eight-month-old male, cat of undefined breed, diagnosed with tracheal avulsion using complementary imaging tests. This diagnosis was confirmed with post-mortem examination. Radiographic examination of the patient’s thorax and a tracheoscopy were performed. These examinations revealed complete discontinuity of the tracheal circumference, the presence of focal and circumscribed dilation of the tracheal lumen and stenosis. The patient quickly died... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diagnostic imaging; Trauma; Trachea; Veterinary pathology; Domestic cat.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001000603 |
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| Andrade,Filipe Moreira de; Judice,Luiz Felippe; Cisne,Rafael; Félix,Bruno; Mourad,Omar Moté Abou; Cardoso,Gilberto Perez; Babinski,Marcio Antonio. |
| The extracellular matrix is a key element in the tracheal morphology and physiology, both in normal and pathological states, yet little is known regarding its composition and organization. Herein we carried out a detailed study of the morphological organization and volumetric density of elastic system fibers in the trachea of Wistar rats. Six Wistar rats at the age of 45 days were used. The trachea was excised following anesthesia with Thiopental and perfusion through the left ventricle with buffered saline followed by formalin solution. Samples were fixed in formaline, embedded in paraffin, and histologically processed. The elastic system fibers were evaluated at light microscopy by using Weigert's resorcin-fuchsin technique after oxidation with oxone.... |
| Tipo: Journal article |
Palavras-chave: Rat; Trachea; Morphology; Elastic fibers; Quantitative evaluation. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100002 |
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| Al-Zhgoul,Mohammad Borhan; Dalab,Abdul Hafeed S; Abdulhakeem,ElJarah; Ismail,Zuhair Bani; Thanain,Al Thanain. |
| The objective of this study was to report the distinctive anatomical and histological features of the trachea of the Arabian Oryx (Oryx leucoryx). The number of tracheal rings and tracheal length were measured. The diameter, thickness and cross sectional area of tracheal ring were determined at four tracheal regions (cranial cervical (CCR), middle cervical, thoracic inlets and intra thoracic). Tracheal rings were also collected for histological analysis. The mean length of the trachea was 54.1cm ± 0.73, while the number of tracheal rings varied from 50-51. Tracheal ring measurements (diameter, thickness and cross sectional area) were smallest at the thoracic inlet region. The ratio of the outer transverse to outer vertical and inner transverse to inner... |
| Tipo: Journal article |
Palavras-chave: Oryx leucoryx; Trachea; Descriptive analysis; Morphometric analysis. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300005 |
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| Cano,Ivana; Pérez,William. |
| We described the macroscopic and quantitative anatomy of the trachea of the Giraffe (Giraffa camelopardalis rothschildi). The trachea of one juvenile male giraffe (25 months of age) weighing 754 kg was used in this study. The length of the neck was 125 cm. The trachea had 107 cm in length on its cervical part and 18 cm on its thoracic part. The total number of cartilage was 87.74 at the neck and 13 at the thorax. The general shape of the duct was mostly circular. The separation of the dorsal ends of the tracheal cartilages was pronounced in the first half of the cervical trachea, reducing caudally and overlapping in the thoracic trachea. In the caudal part the trachea had a tracheal bronchus for the cranial lobe of the right lung and the end of the trachea... |
| Tipo: Journal article |
Palavras-chave: Anatomy; Respiratory aparatus; Trachea; Wild animal; Quantitative study. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300042 |
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| Registros recuperados: 11 | |
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