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The prostate is an exocrine gland of the male mammalian reproductive system. Its main function is to store and secrete a clear, slightly basic fluid that constitutes up to one-third of the volume of semen. The prostate differs considerably between species anatomically, chemically, and physiologically. A healthy human prostate is slightly larger than a walnut. It surrounds the urethra just below the urinary bladder. It is located in front of the rectum and can be felt during a rectal exam.

The male urethra has two functions: to carry urine from the bladder during urination and to carry semen during ejaculation. Within the prostate, the urethra coming from the bladder is called the prostatic urethra and merges with the two ejaculatory ducts. Semen is composed of sperm and seminal fluid; about 10-30% of the seminal fluid is produced by the prostate gland, the rest is produced by the two seminal vesicles. The prostate also contains some smooth muscle that helps to expel semen during ejaculation.

Prostatic secretions vary between species. They are generally composed of simple sugars, and are often slightly basic. In human prostatic secretions, the protein content is less than 1% and includes proteolytic enzymes, acid phosphatase, and prostate-specific antigen. Its secretions also contain zinc and citric acid.

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Prostate Biopsy Is Not Always Necessary, New Finding Suggests http://bit.ly/iADs8
Kiwfranc (Françoise Soros) Sat, 07 Nov 2009 11:57:54 -0000
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Joe_Hallenbeck (Rich Scott) Sat, 07 Nov 2009 11:46:38 -0000
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sudarshan_b34 (Sudarshan Basumatary) Sat, 07 Nov 2009 11:40:59 -0000
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GordyBairn (Gordon Archibald) Sat, 07 Nov 2009 11:40:57 -0000
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Ideal_Vitamins (Ideal Vitamins) Sat, 07 Nov 2009 11:30:54 -0000
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Alternative Medicine for Prostate Health - The Pro-State provides an easy and effective method of prostate massage to improve urological disorders and improve sexual health.
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