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Encyclopedia > Sex hormones

Sex hormones are hormones that affect the reproductive system.


They include:


See also:


  Results from FactBites:
 
Sex steroid - Wikipedia, the free encyclopedia (214 words)
Sex steroids, also known as gonadal steroids, are steroid hormones which interact with vertebrate androgen or estrogen receptors.
Natural sex steroids are made by the gonads (ovaries or testes), by adrenal glands, or by conversion from other sex steroids in other tissues such as liver or fat.
The development of both primary and secondary sexual characteristics is controlled by sex hormones after the initial fetal stage where the presence or absence of the Y-chromosome and/or the SRY gene determine development.
Hormone - Wikipedia, the free encyclopedia (942 words)
Hormone molecules are secreted (released) directly into the bloodstream; some hormones, called ectohormones, aren't secreted into the blood stream, they move by circulation or diffusion to their target cells, which may be nearby cells (paracrine action) in the same tissue or cells of a distant organ of the body.
The function of hormones is to serve as a signal to the target cells; the action of hormones is determined by the pattern of secretion and the signal transduction of the receiving tissue.
A recently-identified class of hormones is that of the "Hunger Hormones" - ghrelin, orexin and PYY 3-36 - and "Satiety hormones" - e.g., leptin, obestatin.
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