Theoretical and Experimental Analysis of Hematocrit Distribution in Microcirculatory Networks
Many investigators have reported that capillary hematocrits in a variety of tissues are substantially lower than corresponding systemic hematocrits (Johnson, 1971; Klitzman and Duling, 1979; Lipowsky et al., 1980). Part of this apparent discrepancy is due to the Fahraeus effect in individual segments (Fahraeus, 1928), tube hematocrit (volume fraction of red cells within a vessel) being lower than discharge hematocrit (volume fraction of red cells in blood flowing through a vessel). However, in vitro measurements and theoretical arguments indicate that this effect alone is not sufficient to explain the observed hematocrit reduction.
KeywordsApparent Viscosity Microvascular Network Segment Flow Daughter Branch Discharge Hematocrit
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