Khor'kov A D
Arkh Anat Gistol Embriol. 1978 May;74(5):96-102.
Ultrastructure of varicous dilatation of the axons composing small neuronal fasciculi in the sympathetic plexus of the rabbit coronary artery has been studied. According to the data of three dimensional reconstruction, space structure of three neuronal fasciculi has been restorted. Axons of every fasciculus form varicous dilatation at the same area along their course. A lemmocytic process, accompanying the axon as a thin cylinder at the intervaricous part flattens, in the area of varicous dilatations. and embraces all the axons, thus forming a peculiar functional unit of the neuronal fasciculus. From the data obtained and those of literature, it is possible to suggest that not only single axons situating in the nearest approximation to smooth muscle cells, but also single neuronal fasciculi having in their composition axons with varicous dilatation might effectively influence the smooth musculature of the vascular wall.
对家兔冠状动脉交感神经丛中小神经元束内轴突的静脉曲张性扩张的超微结构进行了研究。根据三维重建的数据，恢复了三个神经元束的空间结构。每个束的轴突在其行程的同一区域形成静脉曲张性扩张。在静脉曲张部位，一个雪旺细胞过程在静脉曲张间部分作为一个细圆柱体伴随轴突，变平并包裹所有轴突，从而形成神经元束的一个特殊功能单位。根据所获得的数据和文献资料，可以认为不仅最接近平滑肌细胞的单个轴突，而且其组成中含有静脉曲张性扩张轴突的单个神经元束都可能有效地影响血管壁的平滑肌组织。
