Kooda-Cisco M, Talbot P
Department of Biology, University of California, Riverside, California 92521.
J Morphol. 1986 Apr;188(1):91-103. doi: 10.1002/jmor.1051880109.
We have examined the anatomy of the vas deferens of the lobster Homarus americanus and have described the structure of the proximal vas deferens (segments one and two). The two tubes of segment one descend from the testes and gradually merge into segment two. The epithelium of segment one has synthetic activity and appears to contribute to the sperm-supporting matrix by exocytotic release of granules through its apical surface. The epithelium of segment two is also highly synthetic and secretes the primary spermatophore layer and part of the intermediate layer that surround the sperm mass. The trifoil shape of the extruded spermatophore is established through a change in height of some of the cells lining the lumen in segment two. Connective tissue and circular bands of striated muscle surround the epithelium of both segments.
我们研究了美洲螯龙虾输精管的解剖结构，并描述了近端输精管（第一和第二段）的结构。第一段的两根管道从睾丸向下延伸，并逐渐汇入第二段。第一段的上皮具有合成活性，似乎通过颗粒从其顶端表面胞吐释放，为精子支持基质做出贡献。第二段的上皮也具有高度合成性，分泌围绕精子团的初级精荚层和部分中间层。挤出的精荚的三叶形是通过第二段管腔内一些衬里细胞高度的变化形成的。结缔组织和横纹肌的环形带围绕着两段的上皮。
