Abstract
Currently, studies devoted to establish the anatomical and histological patterns of the internal organs organization in animals depending on their species and breed, as well as conditions of detention are the most relevant. The liver morphology in representatives of the ruminant family has not been sufficiently studied. Questions regarding the micro- and ultra-structural organizations of the gallbladder wall remain open. The aim of the study was to establish the ultra-structural organization features of the gallbladder mucous membrane of an Anglo-Nubian goat. The material for the study was the gallbladder wall's fragments of an adult Anglo-Nubian goat. Further processing of the obtained samples was carried out to acquire histological preparations. Ultra-thin sections were photographed in a Jem-1011 electron microscope at magnifications of 2,500 - 3,000. It was found that the gallbladder mucous membrane of an Anglo-Nubian goat is formed by the epithelial layer and its own lamina. The epithelial layer is represented by a single-layer prismatic epithelium. The nuclei are light, with clear contours. The apical surface of epithelial cells forms microvilli and the cytoplasm of the apical pole of cells contains many electron-dense secretory granules. The lateral surfaces of the cells in their apical part are interconnected by tight contacts. The lamina propria is formed by loose connective tissue containing many blood vessels and nerve fibers. Referring to the scientific literature describing possible pathologies of the gallbladder, we can conclude that the picture presented in the results generally corresponds to the position of the gallbladder without pathologies.
Published Version
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