Bozhilova-Pastirova A, Ichev K
Eksp Med Morfol. 1990;29(4):8-13.
The morphological characteristics of axon terminals among a neuropil in the lower olivary complex of ground squirrels at various ages were studied by an electron microscope. The presynaptic part of the chemical synapses in the glomerular or outside glomerular position among the neuropil pf this nuclear complex were axon terminals and terminals "en passant". These axon elements participate in the formation of crash-like synapses with somatic, dendrite prickles, but also with dendrite adjuncts in the formation of complex synaptic connections. A considerable part of myelin axons and axon terminal were changed in old ground squirrels during all seasons. There were two varieties: 1. axon elements with preserved sizes and dense bodies, myelin-like figures, a large number of mitochondria and glycogen granules were found among normal organoids. 2. myelin and amyelin "spheroids" with various sizes and inner structure. The changes axon elements of the neuropil in the inferior olivary complex of ground squirrels at various ages during all seasons are physiological probably connected with the process of aging.
利用电子显微镜研究了不同年龄地松鼠下橄榄复合体神经毡中轴突终末的形态特征。该核复合体神经毡中位于小球内或小球外位置的化学突触的突触前部分为轴突终末和“沿途”终末。这些轴突成分参与与体细胞、树突棘形成撞击样突触，也参与与树突附属物形成复杂突触连接。在所有季节中，老年地松鼠的相当一部分有髓轴突和轴突终末发生了变化。有两种类型：1. 在正常细胞器中发现轴突成分大小保留，有致密体、髓鞘样结构、大量线粒体和糖原颗粒。2. 有各种大小和内部结构的有髓和无髓“球体”。地松鼠下橄榄复合体神经毡中不同年龄轴突成分在所有季节的变化可能在生理上与衰老过程有关。
