Golub' A S, Shoshenko K A
Biull Eksp Biol Med. 1976 Mar;81(3):307-9.
The blood flow distribution in 49 arterial branchings of the mesentery (R. temporaria) was investigated (D of the trunk = 25.7 + 0.0 mum). Linear rate was measured by the impulse digital chronometry of the intervals of the erythrocyte transit time. The geometric characteristics of the branching was determined in vivo, on photographs. An asymmetric structure of the investigated branching was shown; branch 1 had the inner initial cross-section which was 2.2 times greater than that of branch 2 and lesser turning angles (29 and 59 degrees). The blood flow in branch 1 was three times greater than the blood flow in branch 2; this was due to its greater inner initial cross-section and a higher linear rate. According to calculations, the blood flow resistance of the branch-turn was insignificant in the general blood flow resistance of branches; therefore the turning angle of the branches could not serve as an important regulator of the volume of the blood flowing in them. An experimentally revealed association between the blood flow in the branches, their radius and their turning angles is well described by equations of the "optimal" model of the vessel branching.
对肠系膜（颞支）的49个动脉分支中的血流分布进行了研究（主干直径 = 25.7 ± 0.0 毫米）。通过对红细胞通过时间间隔的脉冲数字计时法测量线性速率。在活体状态下，根据照片确定分支的几何特征。结果显示所研究的分支具有不对称结构；分支1的初始内部横截面比分支2大2.2倍，且转折角度较小（分别为29度和59度）。分支1中的血流比分支2中的血流大三倍；这是由于其更大的初始内部横截面和更高的线性速率。根据计算，分支转折处的血流阻力在分支的总体血流阻力中微不足道；因此，分支的转折角度不能作为其中血流体积的重要调节因素。血管分支“最优”模型的方程很好地描述了实验揭示的分支血流、其半径和转折角度之间的关联。
