Figure 6: Histological and histochemical analysis of uterus at adult stage. Figure 6A: Wall of the uterus showing the expanded apices of long folds (asterisk) (H & E). Figure 6B: Higher magnification of the wall of uterus showing expanded mucosal folds (MF) & thick muscular layer (Ms) with large blood vessels (Bv) (H & E). Figures 6C and 6D: Semithin sections of mucosal fold show the epithelium that consists of ciliated cells (cc) with long cilia (arrowhead) and secretory cells (sc) with metachromatic granules. Note, presence of glands (G) underlying the epithelium. (TB). Figure 6E: The apical part of the epithelium and the glands in the lamina propria showing positive reaction by PAS (arrowhead). Figure 6F: The apical part of epithelium and underlying glands showing positive reaction by Alcian blue (arrowhead). Figure 6G: The wall of the uterus of adult quail consists of long mucosal fold (MF) containing epithelium (Ep) and lamina propria-submucosa (Lp), thick muscular layer (Ms) separated by blood vessels (Bv) and followed by serosa (Se). (Crosmon's Trichrome). Figure 6H: Abundant elastic fibers present between the muscle bundles and within the folds (arrowhead). (Wigert’s Elastica).