Releasing hormone
Releasing Hormone
Releasing hormone (pronunciation: ree-lees-ing hor-mone), also known as Hormone releasing factor or Hormone releasing hormone, is a type of hormone that stimulates the release of another hormone from a specific gland in the body.
Etymology
The term "releasing hormone" is derived from its function. The word "release" comes from the Old French relaisser, meaning "to let go", and "hormone" is derived from the Greek hormon, meaning "that which sets in motion".
Function
Releasing hormones are produced and released by the hypothalamus, a small region of the brain that links the nervous system to the endocrine system. These hormones are transported to the pituitary gland, where they stimulate the release of specific hormones into the bloodstream.
There are several types of releasing hormones, each responsible for the release of a specific hormone. These include:
- Gonadotropin-releasing hormone (GnRH): Stimulates the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland.
- Thyrotropin-releasing hormone (TRH): Stimulates the release of thyroid-stimulating hormone (TSH) from the pituitary gland.
- Corticotropin-releasing hormone (CRH): Stimulates the release of adrenocorticotropic hormone (ACTH) from the pituitary gland.
- Growth hormone-releasing hormone (GHRH): Stimulates the release of growth hormone (GH) from the pituitary gland.
Related Terms
- Inhibiting hormone: A hormone that inhibits the release of another hormone from a specific gland.
- Neurohormone: A hormone that is produced and released by neurons.
- Neuropeptide: A small protein-like molecule used by neurons to communicate with each other.
- Neurotransmitter: A chemical substance that transmits nerve impulses across a synapse.
External links
- Medical encyclopedia article on Releasing hormone
- Wikipedia's article - Releasing hormone
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