Ramos A S
Arch Androl. 1979 Nov;3(3):187-96. doi: 10.3109/01485017908988404.
Gross and microscopic morphology of the vas deferens of sexually mature macaque monkeys were studied with special reference to the changes and modifications occurring throughout its entire length. The vas deferens was subdivided into four regional segments designated proximal, middle, distal, and ampulla. Each segment showed morphologic variations and it seemed to correspond roughly to the region located in a different part of the body which it traverses. The longitudinal folds of the epithelium are simple in the proximal region but gradually become more complex towards the distal region. In the ampulla, they often branch and form crypts. Stereocilia of epithelial cells are taller and more uniform in the proximal portion in comparison with the short, irregular stereocilia found in the more distal segment of the vas deferens. The luminal epithelial cells of the proximal part apparently have no granules or cytoplasmic blebbings, while the principal cells in the distal portion contain large numbers of cytoplasmic granules and apical blebs. Cells in the middle segments possess cytological features intermediate to the proximal and distal regions. These structural variations along the length of the vas deferens sug gest that this segment of the excurrent duct of the testis performs functions other than just as a passageway for spermatozoa.
对性成熟猕猴输精管的大体和微观形态进行了研究，特别关注其整个长度上发生的变化和改变。输精管被细分为四个区域段，分别称为近端、中段、远端和壶腹。每个段都表现出形态学差异，并且似乎大致对应于它所穿过的身体不同部位的区域。上皮的纵向褶皱在近端区域简单，但向远端区域逐渐变得更加复杂。在壶腹中，它们经常分支并形成隐窝。与输精管远端段中发现的短而不规则的静纤毛相比，近端部分上皮细胞的静纤毛更高且更均匀。近端部分的管腔上皮细胞显然没有颗粒或细胞质泡，而远端部分的主细胞含有大量细胞质颗粒和顶端小泡。中段的细胞具有介于近端和远端区域之间的细胞学特征。输精管长度上的这些结构变化表明，睾丸输出管道的这一段除了作为精子的通道外还执行其他功能。
