Suzuki F, Racey P A
J Reprod Fertil. 1984 Mar;70(2):419-28. doi: 10.1530/jrf.0.0700419.
In sexually active common shrews (Sorex araneus) the rete testis is a simple sac-like structure situated superficially between the equator and the anterior pole of the testis, and its epithelium glycogen-rich cells. In the ductuli efferentes, the tight junctions of the epithelial cells are poorly developed. The epididymis can be divided cytologically into initial, middle and terminal segments, and some variations are apparent in the fine structure of the principal cells throughout the duct. In the initial segment and in the most proximal part of the middle segment, mitochondrion-rich cells occur sporadically in the epithelium. The ductus deferens is divided into three anatomical regions, a tortuous pars epididymica, a straight middle portion, and an ampullary region. The distal half of the straight portion is distended, and appears to function, together with the terminal segment of the epididymis, as a sperm reservoir.
在性活跃的普通鼩鼱（Sorex araneus）中，睾丸网是一个简单的囊状结构，位于睾丸赤道和前极之间的表层，其上皮细胞富含糖原。在输出小管中，上皮细胞的紧密连接发育不良。附睾在细胞学上可分为起始段、中段和终段，整个管道中主细胞的精细结构存在一些明显差异。在起始段和中段最靠近近端的部分，上皮中偶尔会出现富含线粒体的细胞。输精管分为三个解剖区域，一个曲折的附睾部、一个笔直的中间部分和一个壶腹部区域。笔直部分的远端一半扩张，似乎与附睾的终段一起作为精子储存库发挥作用。
