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对１１个人心标本沿右心室流入道和流出道各壁长轴纵行切开，再将各壁横切为上、中、下３份，各份按１ｍｍ厚度逐层切开，观察其各层肌纤维方向的角度并绘成坐标图。结果表明，右心室流入、流出道游离壁的肌纤维方向由浅入深基本上是渐变的。流入道游离壁的下１／３和流出道的上１／３，浅中层与内层之间可有纤维方向的突变。流入道隔壁的纤维方向从右向左逐渐移行，偶在左、右室内膜面有方向的改变。流出道右室面的中上部有一纤维方向变动较大的层次。对右心室各壁肌纤维方向的排列特或、分层、功能及其临床意义进行了探讨。
11 human heart specimens along the long axis of right ventricular inflow and outflow tract wall longitudinal incision, and then the wall cross-cut for the upper, middle and lower 3 copies of each layer by 1mm thickness cut to observe its each The direction of the layer of muscle fibers and plotted as a graph. The results show that the right ventricular inflow and outflow tract wall muscle fiber direction from shallow to deep is basically a gradual change. Flow into the free wall of the next 1/3 and the outflow Road on the 1/3, the middle layer and the inner layer may have a mutation in the fiber direction. Inflow into the channel next to the fiber direction from right to left gradually shift, even in the left and right ventricular membrane surface direction change. The middle and upper part of the right ventricular outflow tract has a larger fiber level changes. Right ventricular wall muscle fibers in the direction of the arrangement of special, stratification, function and clinical significance were discussed.