23 -2 (34) 2021 — Abdullayeva M. A., Israilov R. I. — THE SPECIFIC STRUCTURE OF THE AORTIC WALL IN RATS

THE SPECIFIC STRUCTURE OF THE AORTIC WALL IN RATS

Abdullayeva M. A., Bukhara State Medical Institute

Israilov R. I. Bukhara State Medical Institute

Kadirova  L.V. Bukhara State Medical Institute

Resume

In this work, specific morphological and morphometric parameters of the aortic wall of white rats were studied, depending on the age of the animals. As a material, the aorta of 6, 12 and 24-month-old rats was taken in its entirety, that is, the thoracic, thoracic and abdominal parts separately. When analyzing the morphometric parameters of the rat aorta by age, it was confirmed that all its parameters: the outer and inner diameter increased by 2 times by 24 months, the area of the cavity-by 9 times, the Foggenworth index, on the contrary, decreased. It was observed that the layers of the aortic wall increased by 35.1% by 24 months each and the total wall thickness.

In young rats, the endothelial layer of the aortic wall is uneven, of varying thickness, the basal membrane is wavy, the intimate is relatively thick, with a large number of cells, in the adjacent part of the median layer, elastic fibers are thin and randomly arranged, in the outer layer of the median shell, elastic fibers are thick and wavy. It was found that 24-month-old rats had specific morphological changes in almost all layers of the aortic wall. The endothelium is thickened, its cells are dense, the elastic fibers of the median are thick and dense, the borders are blurry, adjacent to each other, the cells of the urinary muscle are densely located between them.

Key words: rat, aorta, endothelium, intima, mediastinum, adventitia, morphology, morphometry.

First page

116

Last page

121

For citation: Abdullayeva M. A., Israilov R. I. Kadirova  L.V. The specific structure of the aortic wall in rats // New Day in Medicine 2(34)2021 116-121 https://cutt.ly/8b0ehZi

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