RESUMO
This study was conducted to reveal the anatomical and histological features of left and right septomarginal trabeculae in the heart of the Hatay mountain gazelle. In the study, two female and two male adult Hatay mountain gazelle hearts were used. For this purpose, the materials detected in 10% formaldehyde solution were stained with Crossman's modified triple staining technique and examined under a light microscope after anatomical examinations and measurements were made. The presence of trabeculae in both ventricles was demonstrated. While the number of septomarginal trabeculae was 1 in each of the samples in the right ventricle, it was determined that it was 2 in each of three hearts and 3 in one heart in the left ventricle. It was observed that the right trabeculae were unbranched and fleshy, while the left trabeculae were filamentous and mostly branched. The lengths and thicknesses of the right trabeculae were measured 12-17 mm and 3-4 mm and the lengths and thicknesses of the left trabeculae were measured 6-15 mm and 0.5-1 mm. In the histological examination of both trabeculae, connective tissue, Purkinje fibres and blood vessels were observed, in addition, it was detected that the right trabeculae had myocardial fibres. Few capillaries were found in the left trabecula, while both more capillaries and blood vessels were found in the right trabeculae.
Assuntos
Antílopes , Ventrículos do Coração , Animais , Tecido Conjuntivo , Feminino , Ventrículos do Coração/anatomia & histologia , Masculino , Miocárdio , Ramos SubendocárdicosRESUMO
In the study, it was aimed to reveal the structure of the knee joint anatomically and morphometrically in the wild pig known as the ancestor of the domestic pig. In the study, the left and right knee joints of mature 10 wild boars were used as material. For this purpose, the materials were fixed with 10% formaldehyde solution. Macroanatomical and morphometrical examinations of bones, menisci and ligaments involved in joint formation were performed after fixation. Trochlea and condyles of femur were examined, and various measurements were made. Trochlear labia were found to be the same size, and the condyles did not show a significant difference in size. The shape of lateral condyle of the tibia was trapezoid, and the shape of medial condyle was triangular. Moreover, the lateral intercondylar tubercule was higher according to the medial one. The presence of a shallow groove on the tibial tuberosity was detected. It was found that the width difference between apex and base was more pronounced on the anterior and lateral surface of the patella. Joint surface of the fibula was found to be flat in all materials. The menisci were 'C' shape, but the medial meniscus is more convex than the lateral one. It was observed that the outer edges were thick, while the inner edges were thin. Ligaments of the knee joint were well developed. When the findings of the study were compared with the literature, domestication seemed to have no significant effect in terms of the morphologic properties of the knee joint of wild boar.
Assuntos
Fêmur , Articulação do Joelho , Animais , Meniscos Tibiais , Patela , Sus scrofa , Suínos , TíbiaRESUMO
The present study was aimed at the macroanatomical and histological investigation and the demonstration of the structural characteristics of the uropygial gland in the white stork. The uropygial gland of two adult male white storks constituted the material of the study. It was determined that the gland was situated subcutaneously in between the caudal aspect of the lumbosacral bone and the first coccygeal vertebrae. The gland was composed of two lobes, which displayed an oval appearance when viewed from above and resembled a water drop when observed medially. Tuft of feathers were present on the caudal margin of each lobe. The present study revealed that the uropygial gland of the white stork is a simple tubular gland, which discharges its secretion into the lumen by a holocrine mode. Each lobe, possessed centrally located large cavities and a main excretory duct and displayed the presence of externally situated "peripheral tubules" and interiorly situated "central tubules". These secretory tubules, which composed the parenchyma, were separated by connective tissue septa referred to as "trabeculae", and released their secretion into a centrally located lumen. The wall of the secretory tubules was comprised of four layers, referred to as the germinative, intermediary, secretory and degenerative layers. The silver-staining procedure demonstrated that the stroma of the uropygial gland did not contain reticulum fibres. The anatomy and histology of the gland has been examined in few avian species. Up to date, this study is the first to describe the histological and anatomical peculiarities of the uropygial gland in white stork. The results acquired hereby will surely contribute to further studies to be conducted on the related area.
El estudio tuvo como objetivo la investigación anatómica e histológica de la glándula uropigial de la cigüeña blanca, junto con demostrar las características estructurales de ella. El material del estudio estuvo constituido por glándula uropigial de dos cigüeñas blancas adultas macho. Se determinó que la glándula se encuentra vía subcutánea entre la parte caudal del hueso lumbosacro y las primeras vértebras coccígeas. La glándula se compone de dos lóbulos que muestran un aspecto ovalado, vista desde arriba y se asemejan a una gota de agua cuando se observa en sentido medial. Un penacho de plumas estaba presente en el margen caudal de cada lóbulo. El presente estudio reveló que la glándula uropigial de la cigüeña blanca es una glándula tubular simple, que descarga su secreción al lumen de un modo holocrino. Cada lóbulo posee una gran cavidad de ubicación céntrica y un conducto excretor principal, además muestra la presencia de "túbulos periféricos" situados exteriormente y "túbulos centrales "situados interiormente. Estos túbulos secretores que componen el parénquima, estaban separados por tabiques de tejido conectivo denominado "trabéculas", y liberan su secreción en una luz central. La pared de los túbulos secretores se componen de cuatro capas: germinativa, intermedia, secretora y degenerativa. La tinción de plata demostró que el estroma de la glándula uropigial no contienen fibras reticulares. La anatomía e histología de esta glándula se ha examinado en algunas especies de aves. Hasta la fecha, este es el primer estudio en describir las particularidades histológicas y anatómicas de la glándula uropigial de la cigüeña blanca. Los resultados obtenidos contribuirán a llevar a cabo nuevos estudios relacionados en el área.
