Comparative Study of Prostatic Utricle in Rat, Rabbit, Dog and Man

The present work simply provides general architecture, level of opening and nature of secretion of the prostatic utricle by histological observations with various stains on total 15 animals. The prostatic utricle was identified in all the studied animals; however it varied in its size, shape and structure. Proportionally the largest prostatic utricle was found in rabbit where it was a large elongated pouch with mucosa; submucosa and muscular coats; situated behind the prostate and opened at the median line of posterior wall of prostatic urethra. The prostatic utricle in man and dog was in the form of an elongated cavity with numerous glands; embedded in the urethral crest and opened at the median line of posterior wall of prostatic urethra. In rat it was a minor structure in the form of a few tubules in the substance of urethral crest and opened at the either side of median line of posterior wall of prostatic urethra. The secretion of mucoprotein nature was seen in the prostatic utricle and its glands; in all these studied animals.