Home – Home – Jornals – The journal "Ateroskleroz" 2011 number 2

Investigations are aimed at studying the blood circulation biomechanics, the physical mechanisms of the cardiovascular system transport function, and regularities of branching and dichotomic division and merging of blood flows at the level of bifurcations of large arterial blood vessels and microvessels.
An analysis of created protacrylic casts of the heart and blood vessel cavities has revealed new anatomical peculiarities: funnel-shapedness of the configuration of heart and vessel chambers, tangentiality of atrial orifices and ventricular apertures, and tangentiality of branching of arterial blood vessels at the level of bifurcations.
An original method of X-ray contrast cineangiocardiography has been developed. It has allowed, for the first time at the system level, to visualize the helical character of blood motion in the heart atriums and ventricles, arteries, and veins. In hydrodynamic investigations of the blood circulation system, the physical laws of conservation with a local dynamic approach for funnel-shaped canals were used.
The performed fundamental investigations of the structural-functional organization of the cardiovascular system have allowed the authors to make a number of scientific discoveries. Briefly, their essence is in the following: The phenomenon of formation of a helical blood flow in the cardiovascular system shows new anatomical-functional principles in the greater and lesser circulations; The universal phenomenon of formation of a twisted flow of biological media in the canals of transport systems reveals the general physical mechanism in the organization and sustaining of a helical blood flow in the transport function of the cardiovascular system. This helical flow is created by a twisting wave excited in the channel walls by contraction of spirally oriented muscle and elastic elements; The property of a twisted liquid flow is to create a tractive force in funnel-shaped canals of variable circular section, and discloses the nature of arterial diastolic pressure due to the energy of rotational motion of a helical blood flow. Diastolic pressure is used to overcome the vascular resistance; The law of hemodynamics in arteries reveals a mathematical relation between the dynamic and kinematic characteristics of the helical blood flow; The law of branching of large arterial blood vessels establishes an unambiguous mathematical relation between the morphometric parameters of blood vessels, and the kinematic and dynamic parameters of the helical flow at the level of bifurcations of arteries and veins; The law of branching of blood microvessels reveals an unambiguous mathematical relation between the morphometric parameters of blood microvessels, the kinematic and dynamic parameters of the Poiseuille flow of blood in arterioles, capillaries, and venules.
On the basis of the scientific discoveries, a new direction has been created. It makes it possible to develop new technologies of diagnostics, treatment, and prophylaxis in medical practice.