Research Article

Histomorphological Studies on the Prostate Gland of Donkey Equus Asinus during Different Seasons

Figure 18

(a) Scanning electron micrograph of the luminal surface of the prostatic urethra at the level of the Colliculus seminalis during spring showing the arrangement of the prostate gland openings (arrow) into somewhat parallel rows. ((b)-(c)) High magnification scanning electron micrographs of (a) showing the elevated dome-shaped like papillae of the duct openings with its irregular oval appearance and hexagonal-shaped cell surface (arrowhead). (d) High magnification scanning electron micrograph of the prostate duct opening containing variable numbers of spermatozoa (arrowhead). Scale bar was demonstrated on each figure.
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