Answer: by Melissa BEE: (07/13/2004)
Hello, Thank you for your question.
Sperm and the fluids contributed by the Seminal Vesicles, the Prostate Gland and Cowpers Glands make up SEMEN.
Sperm accounts for only about 1% of the volume of semen. Semen contains water, mucus, sugar (fructose) acids and bases. These activate and nourish sperm. The bases protect the sperm against the acid environment of the vagina.
Typical ejaculate contain 200-400 million sperm, and ranges in volume from 5 millilitres to 20 millilitres (a teaspoon to a tablespoon). The quantity of semen decreases with age and frequency of ejaculation.
For more info on the contents of semen, have a look at the article by Fred Guerra at Jackin' World (see side link).
Best Wishes,
Melissa BEEReviewed by Sexual Health Editorial Team
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