The urogenital apparatus organs morphological features of rabbits

The macro- and micromorphological features of the organs of the genitourinary apparatus of rabbits of the Californian breed have been studied. The topographic boundaries of the right and left kidneys were determined, their morphometry was carried out with subsequent statistical analysis. The micromorphological features of the structure of the ureteral mucosa were investigated. The topography of the urinary bladder was determined at different periods of the physiological state. The microstructure of the mucous membrane of the prostatic part of the urogenital canal was studied. Sexually mature male rabbits of the Californian breed served as the objects for research. A complex of methods of classical and modern morphological studies was used, including the preparation of microslides, radiography with preliminary administration of a contrast agent, morphometric and statistical methods. It was found that the left and right kidneys lie asymmetrically in the retroperitoneal space. The left kidney is more mobile and can change its topography depending on the degree of stomach fullness. The right kidney is deployed relative to the lumbar part of the axial skeleton, in connection with this, the ureter, at the exit, forms a more obtuse bending angle than the organ of the same name on the left side, which forms an almost right angle at the exit from the gate of the left kidney. The structural features of the mucous membrane of the ureters allow us to make an assumption about the presence of epithelial sphincters in the cranial and caudal thirds of the ureters. The smooth muscle sphincter of the bladder neck, when filled with urine, lies anterior to the cranial edge of the pubic fusion. The structural features of the mucous membrane of the prostatic part of the urogenital canal, in particular the presence of numerous complex folds, suggest that this anatomical structure can form an epithelial sphincter.