Sperm and hormones

If you're trying to avoid getting pregnant, here's another reason to mistrust the rhythm method of birth control: New research confirms that the fluid in semen, long dismissed as primarily a vehicle for sperm, contains a substance that can trigger ovulation and other pregnancy-supporting hormonal responses in female mammals. The find could lead to new fertility treatments in humans. Like most female animals, women are spontaneous ovulators, meaning they release eggs on a fairly regular basis regardless of their sexual activity. A few animal species, however, such as camels and rabbits, release viable eggs only in response to sex. These animals are called "induced ovulators.
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Circulating sex hormone levels in relation to male sperm quality

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Relationship between sperm characteristics and hormonal parameters in normal couples

Donate now on our JustGiving page. The functions of the testes are controlled by the Gonadotrophins which travel via the bloodstream to the testes. LH acts on specialised cells within the testes and stimulates release of the male sex hormone, testosterone. FSH acts on a separate population of cells within the testes to stimulate the production of sperm. During puberty testosterone is essential for growth, increasing muscle bulk, development of the penis and for male pattern hair growth. In adult life it is important in maintaining the strength of your muscles and bones, improves general well-being and energy levels and is intricately involved in both your normal sex drive libido and erections. Lack of the male sex hormone, testosterone, is termed Hypogonadism.
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Male hormones and fertility issues

Sperm production is hormonally driven. Brain hormones govern sperm production and are precisely controlled. The male genitalia are responsible for sperm and ejaculate production.
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Unlike the female genitalia , the male reproductive organs are on both the interior and the exterior of the pelvic cavity. They include:. Sperm production occurs in the testicles. Upon reaching puberty , a man will produce millions of sperm cells every day, each measuring about 0.
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