Van Nassauw L, Callebaut M, Harrisson F, Scheuermann D W
Institute of Human Anatomy and Embryology, University Centre of Antwerp, Belgium.
Cell Tissue Res. 1992 Jul;269(1):49-56. doi: 10.1007/BF00384725.
The walls of pre-ovulatory follicles of the Japanese quail were examined at the ultrastructural level for the presence of cells displaying the typical morphological features of smooth muscle cells. These characteristics were found in the cells of the chordae, the tunica albuginea, and the theca externa. Small, elongated cells, containing microfilaments, were observed in the theca of prelampbrush follicles localized in the ovarian cortex. These thecal cells were considered as the putative precursors of the thecal smooth muscle cells of the pre-ovulatory follicle. The difference between the smooth muscle cells of the pre-ovulatory follicle and those in the wall of the most recent post-ovulatory follicle is the contracted state of the latter, which is most evident in the cells of the theca externa. It can be concluded that the cells of the theca externa are smooth muscle cells which are mainly contracted during the ovulatory process. A comparison was made with other vertebrate species.
在超微结构水平上检查了日本鹌鹑排卵前卵泡壁，以寻找显示平滑肌细胞典型形态特征的细胞。在索、白膜和外膜的细胞中发现了这些特征。在位于卵巢皮质的灯刷前卵泡的膜中观察到含有微丝的小的细长细胞。这些膜细胞被认为是排卵前卵泡膜平滑肌细胞的假定前体。排卵前卵泡的平滑肌细胞与最近排卵后卵泡壁的平滑肌细胞之间的差异在于后者的收缩状态，这在外膜细胞中最为明显。可以得出结论，外膜细胞是平滑肌细胞，在排卵过程中主要处于收缩状态。并与其他脊椎动物物种进行了比较。
