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| Registros recuperados: 38 | |
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| Freire,Alexandre Rodrigues; Prado,Felippe Bevilacqua; Rossi,Ana Cláudia; Noritomi,Pedro Yoshito; Neto,Francisco Haiter; Caria,Paulo Henrique Ferreira. |
| This study evaluated the stress distribution based on the canine pillar geometry in human skull, using a finite element analysis. Computed tomography of human skull was used to build a finite element model, which was composed by all bony structures of canine pillar: canine eminence, canine fossa, frontal process of maxilla, glabellum and superciliary arch. A support on the bite contact of maxillary canine tooth and a resultant force of the masticatory muscles was applied in the simulation. Equivalent Von-mises and maximum principal stresses were analyzed along the structures that compose the canine pillar geometry. Von-mises stress presented high stress concentrated at the canine fossa and frontal process of maxilla. Maximum principal stress showed... |
| Tipo: Journal article |
Palavras-chave: Skull; Biomechanics; Finite element analysis. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100036 |
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| Singh,Rajani. |
| Asterion is the point of sutural confluence observed in normal lateralis of the skull where parietal, temporal and occipital bone meet. Present study was carried out in the Department of Anatomy, CSM Medical University, Lucknow using fifty five dry human skulls to analyse the incidence of sutural bones at the asterion and its variation. At the asterion, sutural morphology was classified into two types: Type I- Where a sutural bone was present and Type II- Where a sutural bone was absent. Among 27 female skulls, percentage of Type I Asterion was found to be 14.81 and Type II contributed to 85.19%. 17.86 % asterion were classified as Type I and 82.14% as Type II in male skulls. The examination of 55 skulls (male and female together) brought out 16.36% Type I... |
| Tipo: Journal article |
Palavras-chave: Asterion; Sutural bones; Skull; Parietal; Occipital. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300066 |
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| Baranowski,Piotr; Pezinska-Kijak,Katarzyna; Felska-Blaszczyk,Lidia; Zuk,Krzysztof; Nowak,Piotr; Kosecka,Joanna; Oczeretko,Kamila; Chukwu,Peter; Mazur,Pawel. |
| This study aimed at answering the question whether production of new colour variants of American mink in mink farms using mutations may entail changes in skull morphology and relationships between the bone elements building it. Analyses were made on the skulls of 56 eight-month-old males and females of two American mink colour variants (standard Brown and mutant Sapphire) from the same farm. Mean values, standard deviations and coefficients of variation were determined for carcass weight, cranial and mandibular weights and 7 dorsal surface, 8 lateral surface and 11 basal surface traits of the skull. The values of 24 cranial and mandibular indices and the values of sexual size dimorphism (SSD), i.e. a coefficient describing differences between sexes, were... |
| Tipo: Journal article |
Palavras-chave: Biometry; Neovison vison; Viscerocranium; Neurocranium; Skull. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300024 |
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| Parés, I. Casanova,P. M; Kamal,Sarma; Jordana,J. |
| This study, based on a 48 Xisqueta skull samples, gives a statistical insight of the skull shape in this breed. Thirty eight measurements and eight indexes were recorded. The variance structure was done using a Principal Component Analysis (PCA). This was possible sequel to the application and permission of the covariance matrix. The mean length of the skulls was found to be 265.51±22.24 mm, with the width and cephalic index to the magnitude of 117.2 ± 6.89 mm and 44.69 ± 4.29 mm, respectively. The viscerocranium length was 143.07±9.74 mm thus indicating a similar portion with the neurocranium part of the skull (137.17 ± 6.25 mm). The orbit was slightly almond shaped. Variability was generally high within parameters but parameter variation was less in... |
| Tipo: Journal article |
Palavras-chave: Anatomy; Craniometry; Osteometry; Skull. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000200001 |
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| Olopade,James Olukayode; Onwuka,Silas Kalu. |
| Some measurements in the mandibles and upper jaws of thirty West African Dwarf (WAD) goats without any apparent skeletal disorders were analysed. The length and height of the mandibles were 12.00 cm and 6.90 cm, respectively. The distance from the lateral alveolar root to the mental foramen, from the mental foramen to the caudal mandibular border were 1.56cm, 9.96cm, and 2.58cm respectively. The width and height of the mental foramen were 0.5 cm and 0.3 cm, respectively. These data are discussed with regard to their application to clinical manoeuvres around the head of the goat such as regional anesthesia during dental extraction |
| Tipo: Journal article |
Palavras-chave: Clinical Anatomy; Skull; Goat. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000100006 |
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| Olopade,J. O.; Onwuka,S. K.. |
| The study involved the measurements of some clinically important landmarks for regional anesthesia in the head of twenty five Red Sokoto goats. The length and maximum height of the mandibles were 12.7cm and 7.7cm respectively. The distance from the mandibular foramen to the base of the mandible was 3.0cm while the distance between the lateral alveolar root and mental foramen and from the facial tuberosity to the infra-orbital foramen was 1.8cm in both instances. The data was discussed with regard to its importance in proper tracking of some nerves in aid of regional anaesthetic procedures in the head of the Red Sokoto goat and was compared with our results reported for the West African Dwarf breed |
| Tipo: Journal article |
Palavras-chave: Osteometry; Red Sokoto goats; Regional Anaesthesia; Skull. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200027 |
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| Igado,Olumayowa Olawumi. |
| There has been a recent increase in the use of trained dogs in animal-assisted therapy programmes. This morphological study uses the Nigerian local dog as a prototype dolichocephalic to determine rostrofacial parameters which are of clinical and anesthesiological importance in veterinary oral surgery and intervention. Sixteen Nigerian local dog skulls of both sexes (seven males and nine females) were used. The females were observed to have higher values for most of the parameters measured. Statistically significant difference (P<0.05) was only observed in one parameter, distance between the mandibular foramen and the caudal border of the mandible, with the female value being higher. The length of the mandible from the most rostral point of the dental... |
| Tipo: Journal article |
Palavras-chave: Nigerian local dog; Rostrofacial indices; Regional anaesthesia; Skull; Morphology. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200059 |
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| Noldus, L.P.J.J.; Klerk, R.J.J. De. |
| This study of the Harbour Porpoise Phocoena phocoena (Linnaeus, 1758) has been undertaken in order to find out whether differences in size and growth rate between the skulls of males and females could be demonstrated. Stuart & Morejohn (1980) have established this phenomenon in the population of the north-eastern Pacific. The material on which this study is based, consists of 76 skulls present in the collection of the Rijksmuseum van Natuurlijke Historie (RMNH), Leiden. They all belong to specimens stranded on the Dutch coast. In order to determine the age, of all these specimens the number of dentinal growth layer groups (GLG) in the teeth was counted. Thereupon 32 cranial characters were measured of each skull; these measurements were plotted against... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Mammalia; Cetacea; Phocoenidae; Phocoena phocoena; North Sea; Skull; Growth; Teeth; Age determination; 42.84. |
| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/319036 |
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| Yamaguchi, N.; Kitchener, A.C.; Driscoll, C.A.; Macdonald, D.W.. |
| A divided infraorbital foramen is an important morphological feature in lion taxonomy and has previously been considered to occur only in the Asian lion, Panthera leo persica. Based on an examination of 498 lion skulls from museum collections in Europe and southern Africa, we report for the first time on the prevalence of the divided infraorbital foramen in African lions, as well as its occurrence in the tiger, P. tigris and the extinct Pleistocene European cave lion, P. leo spelaea. The higher frequency of this characteristic in Asian lions may have occurred after the lion colonised Asia, and can be considered an important morphological feature characterising this population. It is not clear whether recent anthropogenic population bottlenecks have... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cave lion; Gujarat; India; Skull; Spelaea; Tiger; 42.84. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/314192 |
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| PREVIATTO,DIEGO MATIUSSI; POSSO,SÉRGIO ROBERTO. |
| The small passerine Cyclaris gujanensis can tear into small pieces large or heavy-bodied preys that could not be swallowed whole such as frogs, snakes, bats and birds. However there are few studies on the cranial anatomy of this species. Thus, we focused on the description of the cranial osteology to contribute to the anatomical knowledge of this species and to make some assumptions about functional anatomy. The fossa temporalis is shallow but broad and the fossa of os palatinum is deepened. The os quadratum processes are long and thick. The os pterygoideum is enlarged and the upper jaw is strongly inclined ventrally (140°) with reference to the skull. The rostral extremity of rhamphotheca is hooked with ventral concavity to fit the mandible (pincer form).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rufous-browed Peppershrike; Skull; Osteology; Anatomy.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492015001800255 |
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| Fonseca,Raul; Astúa,Diego. |
| We analyzed the geographic variations in the shape and size of the cranium and mandible of two woolly opossums, Caluromys derbianus and Caluromys lanatus. Using geometric morphometrics we analyzed 202 specimens of C. derbianus and 123 specimens of C. lanatus, grouped in 7 and 9 populations, respectively. We found sexual dimorphism in shape variables only in the dorsal view of the cranium of Caluromys derbianus, which is not associated with geographical origin. We detected geographic variation in the size of the mandible in two populations (Nicaragua and Northern Panama), but no geographic variation in shape. The size of the cranium of C. lanatus varies significantly, with clinal variation in peri-Amazon populations, with a break between two populations,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caluromyinae; Geometric morphometrics; Marsupial; Neotropics; Skull; Size and shape analysis. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200109 |
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| Adiwardana,Natanael Sutikno; Morás,Juliana de Angelo; Bernardo,Leandro Lombo; Klautau,Giselle Burlamaqui; Queiroz,Wladimir; Vidal,Jose Ernesto. |
| ABSTRACT Osteomyelitis due to Cryptococcus neoformans are described in mostly 10% of patients with disseminated cryptococcosis, being direct inoculation even more uncommon. We report the case of an HIV-infected patient with history of recurring itching on his scalp and repetitive local trauma. For eighteen months, he noticed a painful and slow growing lump on his scalp. He was submitted to an excisional biopsy of the lesion but no etiological diagnosis was identified. After this procedure, the post-surgical wound never completely healed. At admission, the patient presented nausea and headache for three days and an open orifice into his skull. Investigations confirmed meningitis and skull osteomyelitis caused by Cryptococcus neoformans. He was treated with... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Cryptococcus neoformans; Osteomyelitis; Skull; HIV. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000600499 |
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| Deiró,T.C.B.J.; Manhães-de-Castro,R.; Cabral-Filho,J.E.; Souza,S.L.; Freitas-Silva,S.R.; Ferreira,L.M.P.; Guedes,R.C.A.; Câmara,C.R.V.; Barros,K.M.F.T.. |
| We investigated the somatic maturation of neonate rats treated during the suckling period with citalopram, a selective serotonin reuptake inhibitor. Groups with 6 male neonates were randomly assigned to different treatments 24 h after birth. Each litter was suckled by one of the dams until the 21st postnatal day. Body weight, head axis and tail length were measured daily from the 1st to the 21st postnatal day. Time of ear unfolding, auditory conduit opening, incisor eruption, and eye opening was determined. Pups received 5 mg (Cit5), 10 mg (Cit10) or 20 mg/kg (Cit20) citalopram sc, or saline (0.9% NaCl, w/v, sc). Compared to saline, body weight was lower (24.04%, P < 0.01) for Cit10 from the 10th to the 21st day and for Cit20 from the 6th to the 21st... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Serotonin; Growth indicators; Selective serotonin reuptake inhibitor; Citalopram; Craniofacial; Skull. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004001000009 |
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| Registros recuperados: 38 | |
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