【摘要】 应用简化的Golgi-Дейнека氏浸银法,研究了成年猫正常大脑皮质内的扣结样终未。在十字沟前回、十字沟后回、边缘回、后联合回、上塞氏回与外塞氏回等部位都有数量不等的扣结存在。感觉皮质内的扣结数量并不比运动皮质的为少。除少数扣结看来是分散在细胞之间以外,绝大多数扣结都是集附在神经细胞体及树突的表面,特别在大锥体细胞及大星状细胞的表面为密集。扣结的形态类型很多,除环状的外,还有很多是各种形状的实心结节状者。扣结的大小也很有不同,直径在0.8—2.5微米之间。也有纤维在行程中形成梭形膨大或念珠状的扣结与神经细胞体或树突相接触。更多还原

【Abstract】 The presynaptic terminal boutons in the normal cerebral cortex of the adult cats have been studied by means of the simplified Golgi- silver impregnation me- thod.The boutons terminaux were widely distributed in the anterior and posterior gyri of the sulcus cruiatus,gyrus compositus posterior,gyrus suprasylvius and gyrus ectosylvius.These boutons found in the sensory cortex are not less than those in the motor cortex as alleged by Smythies and Gibson (1957) in the human cerebral cortex. In general,the majority of boutons is on the surface of the nerve cell bodies and den- drites,particularly on the large pyramidal cells and large stellate,but some boutons are seem to be scattered in the intercellular region as well.The form and size of the boutons vary greatly.Besides the terminal rings,most of the boutons are in nodular form with a diameter ranging from 0.8μ to 2.5μ.There are some spindle bulbs or string- beads appearing in some fibers as they come in contact with the surface of nerve cell bodies or dendrites.更多还原