Tropic hormone

Tropic hormone

Tropic hormones are hormones that regulate the activity of various other endocrine glands.

One example is the thyroid-stimulating hormone (TSH) (produced by the anterior pituitary) which stimulates the thyroid gland to secrete thyroid hormones. It is the thyroid hormones that actually causes metabolic changes in the human body, in this case to increase metabolic rate and body temperature.

Tropic hormones made and secreted by the anterior pituitary include:
*Thyroid-stimulating hormone (TSH) - stimulates the thyroid gland.
*Adrenocorticotropic hormone (ACTH or corticotropin) - stimulates the adrenal cortex.
*Luteinizing hormone (LH) - stimulates the release of steroid hormones in the ovary and testes.
*Follicle-stimulating hormone (FSH) - stimulates the maturation of eggs and sperm.

The release of tropic hormones is controlled by a class of hypothalamic hormones called releasing hormones, produced in the hypothalamus. For example, luteinizing hormone releasing hormone (LHRH) from the hypothalamus stimulates the release of LH from the anterior pituitary. Thus, while the anterior pituitary controls hormone release in most somatic endocrine glands, the pituitary itself is controlled by the hypothalamus.

ee also

*Endocrine system
*Non-trophic hormone


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  • tropic hormone — noun A hormone that regulates the activity of the endocrine glands …   Wiktionary

  • Non-tropic hormone — Non tropic hormones are hormones that directly stimulate target cells to induce effects. This differs from the tropic hormones, which act on another endocrine gland. Most endocrine glands, such as the gonads, pancreas, and adrenal glands, produce …   Wikipedia

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  • hormone — hormonal, hormonic /hawr mon ik, moh nik/, adj. /hawr mohn/, n. 1. Biochem. any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues… …   Universalium

  • Hormone — A chemical substance produced in the body that controls and regulates the activity of certain cells or organs. Many hormones are secreted by specialized glands such as the thyroid gland. Hormones are essential for every activity of daily living,… …   Medical dictionary

  • tropic — I. noun Etymology: Middle English tropik, from Latin tropicus of the solstice, from Greek tropikos, from tropē turn Date: 1527 1. either of the two parallels of terrestrial latitude at a distance of about 23 1/2 degrees north or south of the… …   New Collegiate Dictionary

  • tropic — tro·pic trō pik adj 1) of, relating to, or characteristic of tropism or of a tropism 2) of a hormone influencing the activity of a specified gland …   Medical dictionary

  • Adrenocorticotropic hormone — proopiomelanocortin (adrenocorticotropin/ beta lipotropin/ alpha melanocyte stimulating hormone/ beta melanocyte stimulating hormone/ beta endorphin) proopiomelanocortin derivatives POMC     …   Wikipedia

  • Gonadotropin-releasing hormone — 1 (luteinizing releasing hormone) from PDB 1YY1 Identifiers …   Wikipedia

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