Affiliations: I.Beritashvili Institute of Physiology, Georgian Academy of Sciences, Gotua Street 14, Tbilisi 380060, USSR
Note: [] Accepted by: Editor E. Fukada
Abstract: The flow conditions of red cells and plasma in microvascular ramifications were investigated in a biological model of the frog’s retrolingual membrane. Upon the controllable reduction of blood flow from the arterioles into the microvascular bed, with an appropriate decrease of red cell: plasma ratio in the blood, a tendency of the red cells to be drawn along the parent main capillaries without entering the branching capillaries was in evidence. These latter thus transformed into the plasmatic capillaries deprived of red cells. The factors being responsible for this process were found to be as follows: (a) the diameter of branching capillaries, (b) the angles of off-shoots, (c) the degree. of slow-down of blood flow velocity in the branches, and (d) the reduction of red cell: plasma ratio in parent vessels. The direct relationship was found between these factors and the transformations of the off-shoots into the plasmatic capillaries.
Keywords: blood flow conditions in bifurcations, red cell: plasma ratio in microcirculation, red cell and plasma separation in microvessels, active and plasmatic capillaries, microcirculation
DOI: 10.3233/BIR-1982-19503
Journal: Biorheology, vol. 19, no. 5, pp. 613-620, 1982
