[Spiral arrangement of muscular elements in the walls of blood vessels and their role in hemodynamics].
The article claims that contractions of the cardiac left ventricle produce a whirling (turbulent) movement of blood that is maintained in the aorta. In the walls of large and small arteries, as well as in the arteriolar walls, myocytes have a spiral arrangement. Their contraction maintains the turbulent blood stream in the vessels with a small diameter, in spite of the fact that the Reinolds' number for them is rather small. The author considers that while making a mathematical analysis of the blood flowing in the arteries, it is necessary to take into account that the walls of the arterial vessels actively influence the blood stream.
D000818:Animals; D001158:Arteries / Q000033:anatomy & histology* / Q000502:physiology; D001160:Arterioles / Q000033:anatomy & histology / Q000502:physiology; D001696:Biomechanical Phenomena; D004285:Dogs; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009131:Muscle, Smooth, Vascular / Q000033:anatomy & histology* / Q000502:physiology; D009200:Myocardial Contraction
Spiral'noe raspolozhenie myshechnykh élementov v stenke krovenosnykh sosudov i ego znachenie dlia gemodinamiki.