De facto. For other uses, see De facto (disambiguation). De facto (/deÉª ËfÃ¦ktoÊ/), Latin for in fact, describes practices that exist in reality, even if not legally authorized. It is commonly used to refer to what happens in practice, in contrast with de jure (in law), which refers to things that happen according to law.
Thyroid-stimulating hormone, also known as thyrotropin, is secreted from cells in the anterior pituitary called thyrotrophs, finds its receptors on epithelial cells in the thyroid gland, and stimulates that gland to synthesize and release thyroid hormones.he most important controller of TSH secretion is thyroid-releasing hormone. Thyroid-releasing hormone is secreted by hypothalamic neurons into hypothalamic-hypophyseal portal blood, finds its receptors on thyrotrophs in the anterior pituitary and stimulates secretion of TSH.
The hypothalamus is located centrally in the brain and communicates by way of an exchange of blood with the pituitary gland. Several neuroendocrine agents, or hormones, are produced by the hypothalamus. The most important hormone for reproduction is called gonadotropin releasing hormone or better known as GnRH. It is released in a rhythmic fashion every 60-120 minutes.