Semen

Semen is a complex mixture of different compounds, and sperm actually only makes up a small amount of it. When you ejaculate, your body produces semen to help facilitate the movement of sperm.

Composition

Semen is only one percent sperm; the rest is composed of over 200 separate proteins, as well as vitamins and minerals including vitamin C, calcium, chlorine, citric acid, fructose, lactic acid, magnesium, nitrogen, phosphorus, potassium, sodium, vitamin B12, and zinc. The presence of blood in semen or hematospermia can be a result of several conditions, including medical procedures, infections, inflammation, and tumors.

Production

Semen is produced in the seminal vesicles, prostate gland, and urethral glands. During ejaculation, sperm travels along the vas deferens, two ducts that pass over and behind the bladder. Fluid from the seminal vesicles and prostate gland combine with sperm to make semen.

Functions

The primary function of semen is to transport sperm to the egg. It also provides a suitable environment for sperm survival and can help to stimulate the female immune response to be more accommodating to the foreign protein.

Health

The quality of semen is a measure of both the sperm count and the condition of the sperm. Some factors can affect the quality and production of semen.

See also

• Spermatozoon
• Ejaculation
• Male reproductive system

Semen Resources
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