Basic Facts about the Prostate Gland: The prostate is asex gland in males. It is around the size of a walnut, and encircles the neck of the bladder and urethra, the tube that expels urine from the bladder. It is partly glandular and partly muscular, with ducts opening into the prostatic portion of the urethra. The prostate is made up of three lobes: a centrally located lobe with one lobe on each side. The prostate gland secretes a slightly alkaline fluid that forms part of the seminal fluid, a fluid that carries sperm during ejaculation.
