[Structure of the elastic framework of the walls of major human arteries].

By the method of raster electron microscopy, the structure of the elastic carcass in the human aortic arc walls and the common carotid arteries were investigated at the age of 30--40 years. Preliminary preparation of vessel samples helped to reveal elastic structures with the preserved interconnections. Peculiar features of the elastic carcass components in the sheaths of the vessel wall were demonstrated. The fenestrated membranes and elastic plexus were found to be interconnected and form a single structural complex of the elastic formations in the middle sheath of the vessels studied.