ABSTRACT
The objective of this work was to assess the origin and distribution of femoral nerves in 30 swine fetuses from crosses of Dan Bred and AGPIC-337 lines. Thirty animalsfifteen males and fifteen femalesfrom the collection of the Faculty of Veterinary Medicine's Animal Anatomy Laboratory of the Federal University of Uberlândia, Uberlândia MG, Brazil, were used. The animals were fixed by injecting a 10% aqueous formaldehyde solution into the descending aorta artery and thoracic, abdominal, pelvic and intramuscular cavities. The specimens were then submerged in a solution with the same concentration. These animals have five to seven lumbar vertebrae. The number of lumbar vertebrae was six in 96.67% and seven in 3.33% of the animals. The femoral nerve originated from the L4 and L5 (66.67%), L5 and L6 (26.67%) and L3 and L4 (6.66%) lumbar vertebrae. It sent branches to the psoas major, psoas minor, iliac, pectineus, and quadriceps femoris muscles in all animals, to the sartorius in 43.33% and to the gracilis in 6.66% of animals. No marked differences were found in the characteristics of origin and distribution of the femoral nerve between the swine fetuses from crosses of Dan Bred and AGPIC-337 lines and the animals described in the literature.
Objetivou-se estudar a origem e distribuição dos nervos femorais em 30 fetos suínos oriundos do cruzamento das linhagens Dan Bred e AGPIC337. Foram utilizados 30 animais, quinze machos e quinze fêmeas, pertencente ao acervo do laboratório de Anatomia Animal da Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia. A fixação dos animais se deu por meio de injeção de solução aquosa de formaldeído a 10% na artéria aorta parte descendente, cavidades torácica, abdominal, pélvica e intramusculares, em seguida, os espécimes foram submersos em solução contendo a mesma concentração. Esses animais possuem cinco a sete vértebras lombares. Em 96,67% dos animais o número de vértebras lombares foi seis e em 3,33% sete. O nervo femoral originou-se de L4 e L5 (66,67%), L5 e L6 (26,67%) e L3 e L4 (6,66%). Emitiu ramos para os músculos psoas maior, psoas menor, ilíaco, pectíneo, quadríceps femoral em 100% dos casos, 43,33% para o sartório e 6,66% para o grácil. Nota-se que não foram observadas diferenças marcantes nas características tanto na origem como na distribuição do nervo femoral entre os fetos de suínos oriundos do cruzamento das linhagens Dan Bred e AGPIC337 e os animais da literatura consultada
Subject(s)
Swine , Peripheral Nervous System , Sus scrofa , Fetus , Anatomy , Lumbosacral PlexusABSTRACT
Chrysocyon brachyurus (maned wolf) is the biggest South American canid and has a high frequency of dental injuries, both in the wild and in captivity. Thus, veterinary procedures are necessary to preserve the feeding capacity of hundreds of captive specimens worldwide. The aim of this study was to investigate the mandibular morphometry of the maned wolf with emphasis on the establishment of anatomic references for anesthetic block of the inferior alveolar and mental nerves. Therefore, 16 measurements in 22 mandibles of C. brachyurus adults were taken. For extraoral block of the inferior alveolar nerve at the level of the mandibular foramen, the needle should be advanced close to the medial face of the mandibular ramus for 11.4 mm perpendicular to the palpable concavity. In another extraoral approach, the needle may be introduced for 30.4 mm from the angular process at a 20-25° angle to the ventral margin. For blocking only the mental nerve, the needle should be inserted for 10 mm from ventral border, close to the labial surface of the mandibular body, at the level of the lower first premolar. The mandibular foramen showed similar position, size, and symmetry in the maned wolf specimens examined. Comparison of the data observed here with those available for other carnivores indicates the need to determine these anatomic references specifically for each species.
Subject(s)
Canidae , Mandible/anatomy & histology , Mandible/innervation , Nerve Block/veterinary , Animals , Male , Nerve Block/methodsABSTRACT
Foram estudados 20 encéfalos de javali (Sus scrofa scrofa), adultos, 14 fêmeas e oito machos, com o sistema arterial corado com látex e fixados por solução aquosa de formaldeído a 10%. A artéria cerebral média em ambos os antímeros, originou-se no ramo rostral da artéria carótida do encéfalo (100%), sendo representado geralmente por dois a cinco vasos arteriais que dirigiram-se laterodorsalmente atingindo a região do trígono olfatório assim como o sulco rinal lateral, preenchendo, no entanto, a fissura transversa do cérebro e distribuindo-se nas porções lateral, dorsolateral, caudolateral e rostrolateral do hemisfério cerebral. O número de vasos arteriais relativos a artéria cerebral média, no antímero direito foi em dois modelos (10% ) a presença de duas artérias, em 13 modelos (65%) a presença de três artérias, em quatro modelos (20%) a presença de quatro artérias e em um modelo (5% ) a presença de cinco artérias. Já no antímero esquerdo encontraram-se em quatro modelos (20% ) a presença de duas artérias, em nove modelos (45%) a existência de três artérias, em seis modelos (30%) a presença de quatro artérias e em um modelo (5%) a presença de cinco artérias.
We studied 20 brains of wild boar (Sus scrofa scrofa), adults, 14 females and 08 males, colored latex and fixed in aqueous 10% formaldehyde. The middle cerebral artery on both the sides, has its origin in the rostral branch of the carotid artery of the brain (100%), and generally represented by two to five arteries who went laterodorsalmente reaching the region of the olfactory trigone and the rhinal sulcus lateral filling but the transverse fissure and distributing the lateral portions, dorsolateral, rostrolateral and caudolateral hemisphere. The number of blood vessels on the middle cerebral artery, was in the right antimere two models (10%) the presence of two arteries, 13 models (65%) the presence of three arteries in models (20%) the presence of four arteries and a model (5%) the presence of five arteries. In the left antimere met fourth models (20%) the presence of two arteries, 9 models (45%) the existence of three arteries, in the sixth models (30%) the presence of four arteries and a model (5 %) the presence of five arteries.
Subject(s)
Brain , Middle Cerebral Artery , Sus scrofa , Topography, MedicalABSTRACT
In the present study, the myocardial bridges of an adult, female, mountain lion that died of natural causes at the "Parque do Sabiá" Zoo, Uberlândia, Minas Gerais, Brazil were examined. The heart was fixed in a 10 por cento formalin solution and the coronary arteries were injected with neoprene latex 450(R). The myocardial bridge is a superficial muscular band that crosses a short segment of the coronary arteries on the epicardium various localizations in the heart. Twelve bridges were seen in this heart. Three crossed the first branch, five crossed the second branch and four crossed the fifth branch of the paraconal interventricular branch of the left coronary artery. The average length of the myocardial bridges was 2,08 mm (range 0,80-3,95 mm), the length of the left ventricle was 58.3 mm. Of the bridges examined 58,3 por cento were in the medial third ventricle, 33,3 por cento were in the apical third and 8,3 por cento were basal third.
