During ejaculation, semen passes through the prostate gland, enters the urethra and exits the body via the urinary meatus.
[4] The alkalinity of the prostatic fluid serves to neutralize the acidity of the female vaginal tract in order to prolong the survival of sperm in this harsh environment.
[6] The bulbourethral glands secrete a small amount of clear fluid into the urethra before the ejaculate is expelled.
[9] In the case that both ejaculatory ducts are obstructed, this illness presents with the symptoms of aspermia and male infertility.
Retrograde ejaculation empties the seminal fluid formed in the emission phase into the bladder of the male instead of expelling it through the urethra and out the tip of the penis.