The Major Vertebrate Hormones - Protein and Peptide Hormones - Anterior pituitary hormones
5 important questions on The Major Vertebrate Hormones - Protein and Peptide Hormones - Anterior pituitary hormones
Which hormones are secreted by the acidophil cells in the anterior petuitary?
Growth hormone and prolactin.
How do the glycoproteins work?
They consist of the subunits alpha and beta, the beta part is the determining part because the alpha part of LH, TSH, and FSH are the same. So when the alpha part and a beta part are together, the molecule becomes active.
What is the funtion of prolactin (PRL)?
(Milk production.) Stimulates the formation an maintenance of the corpora lutea in rats and mice (overies stimulation of progesteron and estrodial), growth and development (metamorphosis newts), water and electrolyt balance, maintenance of the integumentary strucctures (skin, feathers..), actions on steroid-dependant target tissues or syergisms with seroid hormones to affect target tissue (maintaining LH receptors in the testes of some mamalian species.
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What hormone stimulates the production of corticoids? And where does it come from?
ACTH- Adrenocorticotropic hormone from the hypothalamus. It comes from a much larger parent protein - pro-iomelanocortin (POMC)
What hormones are 'made from' POMC (pro-iomelanocortin)?
ACTH (Adrenocorticotropic hormone), MSH (melanoctye-stimulating hormone, a pigmentation regulator) -> All ACTH's are MSH!, opiods (internal painkillers).
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