Under lower power SEM, ladder- like flexures were clearly observed in hamster SCO, while longitudinal folds were visible in the rostral section of gerbil samples.

• 在高倍扫瞄式电子显微镜下 ，仓鼠与沙鼠的连合下器官之室管膜细胞，自喙部至尾部均显现明显的区域性变异。