Figure 10: SEM of the uterovaginal junction in adult quail. Figure 10A: Showing transition of the mucosal folds from longitudinal folds of the uterus (UF) to complex interconnecting folds of the vagina (VF). Figures 10B and 10C: Many typical sperms with oval head and tail (arrowheads) were inserted between the ciliated (cc) and microvillous cells (MC) at sperm host glands. Figure 10D: The sperms collected in group (arrowhead) and began to autolized and engulfed from the tail region