Appell H J, Stang-Voss C
Cell Tissue Res. 1980;208(1):165-8. doi: 10.1007/BF00234181.
The cardiac muscle fibers in the trabeculae carneae of mice, rats, and rabbits show a special arrangement of densely interwoven myofibrils. They cross at various angles; however, a preferred orientation of the fibrils cannot be discerned. It is suggested that due to this arrangement the myocytes of trabeculae are not able to contract to the same extent as ventricular myocytes, but thereby gain a high rigidity during contraction. Hence, they may play a principal role as "guiding ridges" for the flow of blood, thereby improving hemodynamics.
小鼠、大鼠和家兔肉柱中的心肌纤维呈现出一种特殊排列，即肌原纤维紧密交织。它们以各种角度交叉；然而，无法辨别出纤维的优先取向。有人认为，由于这种排列方式，肉柱的心肌细胞无法像心室肌细胞那样充分收缩，但在收缩过程中却获得了很高的刚性。因此，它们可能作为血液流动的“引导嵴”发挥主要作用，从而改善血液动力学。
