Keywords
blood
shear stress
hematocrit
plasma proteins
How to Cite
Abstract
Viscosity is a key physical property of biological fluids that determines their resistance to flow
and directly influences circulation, tissue perfusion, and cellular transport. This article provides an
in-depth analysis of the viscosity of biological fluids—primarily blood—integrating principles of
fluid mechanics with physiological and clinical perspectives. The determinants of viscosity,
including hematocrit, plasma protein concentration, temperature, and shear rate, are discussed
alongside their role in normal physiology and disease states. Alterations in viscosity are shown to
play a critical role in cardiovascular disorders, diabetes mellitus, and inflammatory conditions,
making it an important diagnostic and prognostic parameter in modern medicine
References
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8. National Institutes of Health – Blood rheology studies, 2022
This work is licensed under a Creative Commons Attribution 4.0 International License.