Hemodynamics

Hemodynamics <a href="/facts/American_and_British_English_spelling_differences/YEtRtJrV">or</a> haemodynamics are the <a href="/facts/Fluid_dynamics/y7uzSCfg">dynamics</a> of blood flow. The <a href="/facts/Circulatory_system/WXwudzzc">circulatory system</a> is controlled by <a href="/facts/Homeostasis/rloTGAHa">homeostatic</a> mechanisms of <a href="/facts/Autoregulation/gKf6Lvcr">autoregulation</a>, just as <a href="/facts/Hydraulic_circuit/4GeHHaKb">hydraulic circuits</a> are controlled by <a href="/facts/Control_system/8CEjIDlS">control systems</a>. The hemodynamic response continuously monitors and adjusts to conditions in the body and its environment. Hemodynamics explains the <a href="/facts/Physical_law/aVtc4wpk">physical laws</a> that govern the flow of blood in the <a href="/facts/Blood_vessel/FG3GjPNW">blood vessels</a>.
Blood flow ensures the transportation of <a href="/facts/Nutrient/34bn4skK">nutrients</a>, <a href="/facts/Hormone/WFnBnINJ">hormones</a>, metabolic waste products, <a href="/facts/Oxygen/acyn6o8r">oxygen</a>, and <a href="/facts/Carbon_dioxide/xGzpppEp">carbon dioxide</a> throughout the body to maintain cell-level <a href="/facts/Metabolism/WxDrm8k5">metabolism</a>, the regulation of the <a href="/facts/PH/RnSv8D7y">pH</a>, <a href="/facts/Osmotic_pressure/6oWKTsXV">osmotic pressure</a> and temperature of the whole body, and the protection from microbial and mechanical harm.
Blood is a <a href="/facts/Non-Newtonian_fluid/jX8ldWJa">non-Newtonian fluid</a>, and is most efficiently studied using <a href="/facts/Rheology/KexaBNCS">rheology</a> rather than hydrodynamics. Because blood vessels are not rigid tubes, classic hydrodynamics and fluids mechanics based on the use of classical viscometers are not capable of explaining haemodynamics.
The study of the blood flow is called hemodynamics, and the study of the properties of the blood flow is called <a href="/facts/Hemorheology/KfeVT4BK">hemorheology</a>.

Hemodynamics open-in-new

Hemodynamics