Urethera is that structure that produces a thin milky fluid that aids in sperm motility.
What is sperm?
Sperm cells are male reproductive cells that originate in the testicles. Sperm cells swim to and fertilize a female reproductive cell called an oocyte.
Numerous short ducts from the substance of the prostate gland empty into the prostatic urethra. The secretions of the prostate are thin, milky colored, and alkaline. They function to enhance the motility of the sperm.
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