Fellowship in Sexology and Psychosexual Counseling. For More Info WhatsApp- 9604715783/9359863878. The testis is composed of coiled seminiferous tubules where the sperms are formed. Sperms then empty into Epididymis, a 20 feet long coiled tube. Epididymis leads to vas deferens which immediately enlarges into Ampulla before entering the Prostate. The seminal vesicle, located on each side of the Prostate, empties into the prostatic End of the Ampulla. The contents of the Ampulla and the seminal vesicle pass into the Ejaculatory duct leading through the body of the prostate gland to empty into the internal Urethra. Prostatic ducts, in turn, drain into the Ejaculatory duct. Finally, the Urethra in the penis is the last connecting link from the testis to the exterior. Many small Glands of Littre are located along the entire length of the Urethra. The bilateral Bulbourethral (Cowper's) glands produce mucus that is added to the semen in the case of men.