![]() ![]() Therefore, blood is a shear-thinning fluid. Blood becomes less viscous at high shear rates like those experienced with increased flow such as during exercise or in peak- systole. As such, the viscosity of blood varies with shear rate. Because of that, blood behaves as a non-Newtonian fluid. Red blood cells have unique mechanical behavior, which can be discussed under the terms erythrocyte deformability and erythrocyte aggregation. Blood viscosity is determined by plasma viscosity, hematocrit (volume fraction of red blood cell, which constitute 99.9% of the cellular elements) and mechanical properties of red blood cells. Alterations of these properties play significant roles in disease processes. Proper tissue perfusion can occur only when blood's rheological properties are within certain levels. Hemorheology, also spelled haemorheology (from Greek ‘αἷμα, haima ' blood' and rheology, from Greek ῥέω rhéō, ' flow' and -λoγία, -logia 'study of'), or blood rheology, is the study of flow properties of blood and its elements of plasma and cells. ( December 2020) ( Learn how and when to remove this template message) Please help improve this article if you can. The specific problem is: the article is full of duplicated informations in different sections. This article may require cleanup to meet Wikipedia's quality standards. ![]()
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