The flashcards below were created by user
sweetlu
on FreezingBlue Flashcards.
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TRH
- - thyrotropin releasing hormone
- - cause TSH release---> T3 and T4
- -**can also cause increase in prolactin as well**
- - paraventricular nucleus
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CRH
- -corticotropin releasing hormone
- - cause ACTH release--> Cortisol
- - paraventricular nucleus
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GnRH
- - gonadotropin releasing hormone
- - cause LH and FSH release---> sex steroids
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GHRH (SRH)
- - growth hormone (somatotropin) releasing hormone
- - cause GH release---> IGF-1(Somatomedin C)
- - arcuate nucleus
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Somatostatin
- inhibits GH release
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Dopamine
- - inhibits prolactin release
- - arcuate nucleus
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DHEA
- - adrenal androgen (steroid)
- - NOT protein carrier bound
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POMC
- - large precursor of several different hormones
- - ACTH, B- lipoprotein, MSH(a,b,g), B-endorphin
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adenohypophysis
- - oral ectoderm derived
- - pars distalis, pars tuberalis, and pars intermedia
- - GH(somatotropic) and PRL(prolactin)-> acidophilic
- - FSH, LH, TSH(thyrotropin), ACTH(corticotropin)-> basophilic (glycoproteins)
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neurohypophysis
- - neural ectoderm derived
- - pars nervosa, infundibulum and median eminence
- - stores ADH(supraoptic n) and oxytocin(paraventricular n) made mostly in respective nuclei (both nuclei make both though)
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basophils and secretions
- - thyrotrophs- TSH(thyrotropin)
- - corticotrophs- ACTH(corticotropin), MSH, LPH, endorphins and enkaphalins==> all from POMC precursor
- -gonadotrophs- LH and FSH
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thyocyanate
- - Na/I cotransported inhibitor
- - cabbage and casava
- - inhibition of I uptake in thyroid cells, can prevent synthesis of new thyroxine
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