Murakami M, Sugita A, Hamasaki M
Scan Electron Microsc. 1982(Pt 3):1333-9.
The vasa deferentia of men and monkeys were studied and compared with special attention to spermiophagy by epithelial cells in the ampullary region. Specimens were obtained from adult men who were subjected to total vasectomy for early prostatic cancer and from healthy adult Japanese monkeys (Macacus fuscatus). The vasa do not differ greatly in gross and microscopic morphology between man and monkey. The mucosal lining of the vas, except for its ampullary region, is generally smooth with occasional infoldings and consists of a pseudostratified columnar epithelium. The free epithelial surface is covered by dense mat of long microvilli (stereocilia) on which a few spermatozoa reside. In contrast to other regions of the vas, the ampullary lumen has a spindle-shaped dilation and complicated infoldings of the mucosa, the mucosa is wider and much more infolded in man than in monkey. The columnar epithelial cells characteristically contain abundant secretory granules in the cytoplasm and bear short, stubby microvilli in the place of stereocilia. Worthy of special mention in the ampullary region of the vas in both species is that various stages of spermiophagy by the epithelial cells are extensively visualized by SEM. The ampullary region may play a role in the removal of excess spermatozoa in addition to the storage of them.
对男性和猴子的输精管进行了研究和比较，特别关注壶腹区域上皮细胞的噬精现象。标本取自因早期前列腺癌接受全输精管切除术的成年男性以及健康的成年日本猕猴（食蟹猴）。人与猴的输精管在大体和微观形态上差异不大。输精管的黏膜内衬，除了壶腹区域外，通常光滑，偶尔有褶皱，由假复层柱状上皮组成。游离的上皮表面覆盖着密集的长微绒毛（静纤毛），上面有一些精子。与输精管的其他区域不同，壶腹管腔呈纺锤形扩张，黏膜有复杂的褶皱，人类的黏膜比猴子的更宽且褶皱更多。柱状上皮细胞的细胞质中典型地含有丰富的分泌颗粒，并且在静纤毛的位置上有短而粗的微绒毛。在这两个物种的输精管壶腹区域，值得特别提及的是，上皮细胞噬精的各个阶段通过扫描电子显微镜广泛可见。壶腹区域除了储存精子外，可能还在清除多余精子方面发挥作用。
