any of a class of hormones from the anterior pituitary gland that affect the secretion of other endocrine glands. The tropic hormones include thyroid-stimulating hormone, corticotropin, follicle-stimulating hormone, and luteinizing hormone.
Is LH a tropic hormone?
The anterior pituitary, or adenohypophysis, plays a central role in the regulation of endocrine function through the production and release of tropic hormones (Figure 3–1).
|Anterior pituitary cells||Hypothalamic factor||Pituitary hormone produced|
|Gonadotrophs||GnRH||LH and FSH|
Are LH and FSH Tropic hormones?
Luteinizing hormone (LH) – stimulates the release of steroid hormones in gonads—the ovary and testes. Follicle-stimulating hormone (FSH) – stimulates the maturation of eggs and production of sperm.
What are the 6 trophic hormones?
These AL tropic hormones are regulated by the hypothalamic releasing and inhibiting hormones corticotropin-releasing hormone (CRH), thyrotropin-releasing hormone (TRH), prolactin-inhibiting hormone (PIH or dopamine), prolactin-releasing factor (PRF), gonadotropin-releasing hormone (GnRH), growth hormone-releasing …
What is an example of trophic hormones?
Trophic hormones from the anterior pituitary include: Thyroid-stimulating hormone (TSH or thyrotropin) – stimulates the thyroid gland increasing the size and number of cells. Adrenocorticotropic hormone (ACTH or corticotropin) – stimulates the adrenal cortex increasing the size and number of cells.
What organs are affected by tropic hormones?
|Tropic (or Pseudo-Tropic) Hormone(s) All are Peptides||Target Organ|
|ACTH (adrenal cortex tropic H.) or adrenocorticotropin||Adrenal Cortex|
|Gonadotropins — LH (Luteinizing H.) and FSH (follicle stimulating H.)#||Gonads|
|TSH (thyroid stimulating H.) or Thyrotropin||Thyroid|
|GH (Growth H.) = somatotropin||Liver (& others)|
What hormones are not Tropic?
Some examples of non-tropic hormones are:
- Glucocorticoids: secreted from the adrenal glands and released directly into the blood stream where it alters blood glucose levels. …
- Vasopressin (Antidiuretic hormone; ADH): secreted from the posterior pituitary and acts on the kidneys to maintain water balance in the body.
Is prolactin a hormone?
A prolactin (PRL) test measures the level of prolactin in the blood. Prolactin is a hormone made by the pituitary gland, a small gland at the base of the brain. Prolactin causes the breasts to grow and make milk during pregnancy and after birth. Prolactin levels are normally high for pregnant women and new mothers.
What is LH called in males?
In females, an acute rise of LH (“LH surge”) triggers ovulation and development of the corpus luteum. In males, where LH had also been called interstitial cell–stimulating hormone (ICSH), it stimulates Leydig cell production of testosterone.
What hormones do hypothalamus produce?
The hormones produced in the hypothalamus are corticotrophin-releasing hormone, dopamine, growth hormone-releasing hormone, somatostatin, gonadotrophin-releasing hormone and thyrotrophin-releasing hormone.
What does trophic mean?
(Entry 1 of 2) 1 : of or relating to nutrition : nutritional trophic disorders. 2 : tropic entry 3. 3 : promoting cellular growth, differentiation, and survival.
What is trophic effect?
The trophic effects in the stomach are manifested as an increased weight and thickness of the oxyntic mucosa and can be induced by both exogenous and endogenous gastrin–that is, in situations of long-lasting hypergastrinemia (treatment with effective antisecretagogues, partial fundectomy, or antrum exclusion).
What type of hormone is GHRH?
Growth-hormone-releasing hormone (GHRH, somatoliberin) is the hypothalamic peptide hormone that specifically stimulates synthesis and release of growth hormone (GH, somatotropin) by somatotrope cells of the anterior pituitary gland.
What is a target hormone?
A target cell responds to a hormone because it bears receptors for the hormone. In other words, a particular cell is a target cell for a hormone if it contains functional receptors for that hormone, and cells which do not have such a receptor cannot be influenced directly by that hormone.
What is the function of releasing hormones?
Releasing hormones and inhibiting hormones are hormones whose main purpose is to control the release of other hormones, either by stimulating or inhibiting their release.