The Prostate

The prostate is a male sex gland that adds fluid and nutrients to the sperm. Along with other male sex glands, it makes, stores, and secretes the seminal fluid. It is a firm, walnut-sized gland below the bladder and in front of the rectum.6 For the prostate to function, it needs androgens (male hormones), which are responsible for the sex characteristics in men. The main hormone is testosterone, mainly produced by the testicles.

The tube (urethra) carrying urine runs through the prostate. The urethra works by:

  • Transporting urine from the bladder during urination
  • Carrying the semen during ejaculation

Male Anatomy17

Flash required.

The American Cancer Society estimates there will be 192,000 new cases of prostate cancer in the U.S. in 2009.2