RIU 324 Study Guide - Final Guide: Smooth Muscle Tissue, Newtonian Fluid, Circulatory System
23 Apr 2020
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Energy losses with varying stages disease: this diagram demonstrates how energy losses increase with decreasing vessel size as a result of increased frictional and viscous energy loss (using the discretized model of the previous slide). Velocity profiles: the following diagram demonstrates the boundary effects on the flow profile through varying vessel sizes. Newtonian fluid and blood viscosity: decrease in hematocrit" or rbcs will decrease viscosity, reduction in temperature results in increased viscosity, anemic patients have less viscous loss. Arterial vessel sizes: varying vessel diameter is a principal mechanism in controlling the effective resistance throughout the arterial system. Control of the resistance is critical to control pressure decrease as well as regulate volumetric flow (as indicated by the simplified law). The effective resistance in the capillaries is still very high, although generally lower than the resistance of the arterioles because of the sheer number of capillaries.
