随着动物种系的进化,脊椎动物由低级向高级过度,各脏器发生了一系列适应性演变,心脏从鱼类的一房一室发展到哺乳类的两房两室,心脏结构的演变必然伴随着支配心肌的微血管系统的相应改变。我们以鱼、蟾蜍、鸽、大鼠作为鱼类、两栖类、鸟类、哺乳类的代表动物。用墨汁灌注的方法显示心肌微血管,在显微镜下观 With the evolution of animal germlines, vertebrates from low to high over, a series of adaptive evolution of various organs, the heart from the fish room to room development to mammalian two rooms two rooms, the evolution of cardiac structure Necessarily accompanied by the corresponding changes in the microvascular system that governs the myocardium. We fish, toads, pigeons, rats as fish, amphibians, birds, mammals representative animal. Myocardial microvessels were visualized by ink perfusion and visualized under a microscope