The prostate gland is a solid, chestnut-shaped organ surrounding the first part of the urethra (tube which carries the urine and semen) in the male. It produces secretions which form a part of the semen. The prostate gland lies just under the bladder and in front of the rectum. 

It consists of two main zones: the inner zone, which produces secretions to keep the lining of the male urethra moist, and the outer zone, which produces seminal fluids to facilitate the passage of semen into the female. The "urethra" is a two-stemmed duct leading from the bladder and from the prostate gland into the penis. 

The word, "aphrodisiac," is derived from Aphrodite, the Greek goddess of love and sexual pleasure. The ancient Greeks thought honey would produce an increase in sexual powers and they believed the same of the hair from a wolf's tail and ground snake bones. The French used an "aphrodisia" which they called the "love apple" - actually a tomato. Today, the hope lies in oysters. Sadly, the fallacy that a ground rhinoceros horn will help in this plight has put this animal on the endangered species list. Actually, aphrodisiacs are in the mind and operate only by the power of suggestion - if at all.