Structural organization of the vascular-fatty arcades of the greater omentum of white rats

Authors

Keywords:

greater omentum, vascular-fatty arcades, milky spots, serous-reticular membranes, white rats

Abstract

Background. Previously, the greater omentum was considered an inert adipose tissue that provided isolation of the abdominal cavity, but now it is recognized as an active immunological organ with a complex structure, which exclusively protects the organs of the abdominal cavity from various pathological processes, is a derivative of the peritoneum, and is characterized by significant individual variability due to the shape, dimensional characteristics and structural elements in the form of specific vascular-fatty arcade tissue complexes that connect with the help of intermediate serous formations. Objective. To study the structural organization of the vascular-fatty arcades of the greater omentum of white rats. Methods. The experiment involved 20 white male rats of reproductive age, weighing from 278.08 to 346.47 grams. The material was total preparations of the greater omentum, stained with hematoxylin-eosin, 1% solution of methylene blue in 1% solution of borax, as well as preparations with injection of the bloodstream by ink with gelatin. Results. Studying the general characteristics of vascular-fatty arcades, it was found that in one case they have the appearance of uniform width and thickness of opaque strips anastomosing each other in a loop-like manner, in the center of which thin layers of blood vessels lie. Otherwise, such formations have a nubbly shape along their length, which is represented by alternating rows of adipose tissue particles of different sizes, located along the course of blood vessels. There are also various combined variants, all of which are individual (phenotypic) manifestations of adipose tissue deposition in the omentum. At the same time, in all cases, these vascular-fatty arcades in their native form have a similar red color due to the blood contained in the thick microvascular network. Conclusion. Vascular-fatty arcades of the greater omentum of white male rats have the appearance of fringed strips or may have a nubbly shape, within there are milky spots on both sides of the axial blood vessels. Milky spots in the greater omentum of white rats become available for visual study only when staining its total preparations with basophilic dyes. At the same time, some of them, the smallest, are located in the thickness of adipose tissue, adjacent to the axial vessels, and the others, the largest, are outside it. Along with them, such forms occupy an intermediate position.

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Published

2022-10-15

How to Cite

Maksymenko, . O. (2022). Structural organization of the vascular-fatty arcades of the greater omentum of white rats. Морфологія / Morphologia / Morfologìâ, 16(3), 61–68. Retrieved from https://morphology.dma.edu.ua/article/view/281905

Issue

Vol. 16 No. 3 (2022)

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