本文采用多点连续电解毁损法对猫脑左侧皮质体感Ⅰ区进行损毀。用光镜和透射电镜对丘脑左侧中央外侧核内的溃变成分进行了观察。实验结果表明皮质体感Ⅰ区发出纤维通过内囊至中央外侧核后部,并与该部神经元形成突触,其中以轴-树突触较多,且以不对称型者居多。 In this paper, the multi-point continuous electrolytic destruction method on the left cortex of cats brain area Ⅰ sense of damage. The degenerative components in the left central nucleus lateralis of the thalamus were observed with light microscope and transmission electron microscope. The experimental results show that the cortical somatosensory I area sends fibers through the inner capsule to the posterior part of the central lateral nucleus and forms synapses with the neurons in the cortex. Among them, there are many axonal-dendritic synapses and most of them are asymmetric.