Henderson R M, Johns A, Paton D M
Gynecol Invest. 1976;7(3):127-37. doi: 10.1159/000301329.
The types of cell-to-cell contacts and the relationship between the nerve endings and the smooth muscle of the estrogen-treated rabbit oviduct have been investigated. The cell contacts most consistently found in the oviduct were simple appositions, with a 20-nm cell separation, which occasionally included a more dense region, and interdigitations of muscle cell processes with the same separation distances. Very rarely, wider intermediate contacts were present. Gap junctions (nexuses) were absent. It seems likely that simple appositions and interdigitations form the low resistance pathway for conduction of electrical activity. Nerves containing small dense-cored vesicles were present both within and near muscle bundles; they were rarely found close to smooth muscle cells.
对雌激素处理过的兔输卵管中细胞间接触的类型以及神经末梢与平滑肌之间的关系进行了研究。在输卵管中最常发现的细胞接触是简单并置，细胞间距为20纳米，偶尔包括一个更致密的区域，以及肌细胞突起以相同间距相互交错。非常罕见的是，存在更宽的中间接触。不存在缝隙连接（连接复合体）。简单并置和交错似乎构成了电活动传导的低电阻途径。含有小的致密核心囊泡的神经存在于肌束内和附近；很少在靠近平滑肌细胞处发现。
