自从七十年代初应用轴浆流原理,开展了用辣根过氧化物酶(HRP)和[~3H]标记氨基酸等示踪物质研究神经系统纤维联系的方法以来,在神经解剖学方面做了大量的研究工作。但对一个神经元轴突的分枝投射到不同的脑部的问题,由于方法的限制,研究比较困难。自 Since the beginning of the seventies, the theory of axonal flow has been applied to the study of neurofibrillary connections using tracers such as horseradish peroxidase (HRP) and [~ 3H] -labeled amino acids A lot of research work. However, the problem of projecting a branch of a neuron axon to different brain is difficult to study due to the limitation of the method. from