The morphometric analysis of the smooth muscle cells, elastic membranes, collagen fibers of the abdominal part of human aortic media without cardiovascular diseases in age groups from 1 to 65 years and patients with aneurysm in bordering with aneurysm zone in age groups from 55 to 70 years was carried out. The specific area of smooth muscle cells, collagen fibers, and elastiс membranes was studied. The nature of qualitative and quantitative changes of these indicators in the analyzed groups was established. The indicators of the specific area of smooth muscle cells, collagen fibers, and elastiс membranes in the bordering with aneurysm zone were studied and analyzed. Сomparative analysis was carried out and the features of the structural organization of the aortic media in the normal and bordering with aneurysm zone were revealed. The main structures responsible for maintaining the integrity of the vascular wall were identified.
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