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目的：为了研究脊椎动物心壁结构及血液供应方式的演变，探讨心肌血管重建术的机理。方法：采用墨汁灌注及组织切片染色法，对鱼、蛙、蛇、鼠心心肌的组织结构和心腔与心室壁的交通状况进行了观察。结果：除蛙心壁全层均为海绵状心肌结构外，心壁均分为内、外两层。外层一般为致密心肌组织，由冠状动脉供血。内层为海绵状心肌结构，由心腔直接供血。随脊椎动物的进化，心壁由海绵状结构逐渐演化为较致密的心肌组织，冠状血管不断发育，其供血范围逐渐增加，而心腔与心壁交通血管逐渐减少。结论：当冠状动脉阻塞时，可以模仿低等脊椎动物心肌的供血方式，在心壁重建与心腔相通的管道，直接供血
Objective: To investigate the evolution of vertebrate wall structure and blood supply and to explore the mechanism of myocardial revascularization. Methods: The ink perfusion and tissue section staining were used to observe the tissue structure of heart, heart and ventricular wall of fish, frogs, snakes and rats. Results: In addition to the cavernous myocardium in all layers of the frog heart wall, the heart wall was divided into inner and outer layers. Outer layer is generally dense myocardial tissue, blood supply from the coronary artery. The inner layer of cavernous myocardial structure, direct supply of blood from the heart chamber. With the evolution of vertebrates, the heart wall gradually evolved from a sponge-like structure to a denser myocardial tissue. The coronary vessels continuously developed, their blood supply increased gradually, and the traffic vessels in the heart cavity and the heart wall gradually decreased. Conclusion: When the coronary artery obstruction, we can imitate the lower vertebrate myocardial blood supply, the heart wall reconstruction of the heart chamber, direct blood supply