Hemodynamics

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Hemodynamics or haemodynamics are the dynamics of blood flow as well as a branch of biofluid dynamics. The circulatory system is controlled by homeostatic mechanisms of autoregulation, just as hydraulic circuits are controlled by control systems. The hemodynamic response continuously monitors and adjusts to conditions in the body and its environment. Hemodynamics explains the physical laws that govern the flow of blood in the blood vessels. Blood flow ensures the transportation of nutrients, hormones, metabolic waste products, oxygen, and carbon dioxide throughout the body to maintain cell-level metabolism, the regulation of the pH, osmotic pressure and temperature of the whole body, and the protection from microbial and mechanical harm. Blood can behave as a non-Newtonian fluid, and is most commonly studied using rheology. Because blood vessels are not rigid tubes; classic hydrodynamics based on the use of classical viscometers are incapable of explaining haemodynamics. The study of the...

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