12 Questions
What is the function of growth hormone-releasing hormone (GHRH) in the hypothalamic-pituitary axis?
Stimulates growth hormone release
Which hormone inhibits the release of growth hormone from somatotrophs?
Somatostatin
What hormones are affected by somatostatin inhibition according to the text?
Insulin and glucagon
How is growth hormone secretion regulated in somatotropic cells?
Pulsatile fashion especially during sleep
Which hormone stimulates growth hormone secretion in normal persons?
Dopamine
What is the role of bromocriptine in relation to growth hormone?
Reduces growth hormone secretion
What is the main function of gonadotrophins in the context of reproductive hormones?
Stimulate FSH release
Why is the plasma FSH/LH concentration test used in postmenopausal women?
To determine age-related hormone changes
What is the role of the periodic pulses of hypothalamic gonadotrophin-releasing hormone (GnRH) in the anterior pituitary gland?
Sensitizes the pituitary-release factor-sensitive receptor cells for production of FSH and LH
Which hormone stimulates the synthesis of testosterone in Leydig's cells in males?
Luteinizing hormone (LH)
In females, what hormone stimulates the granulosa cell to synthesize estrogen and inhibin?
Follicle-stimulating hormone (FSH)
How does GHRF affect somatotroph cells for growth hormone secretion?
Activates the somatotroph cells for secretion of growth hormones
Explore the role of somatotropic cells in the anterior pituitary gland and the secretion of growth hormone-releasing hormone and somatostatin. Learn about the pulsatile secretion of growth hormones and the effects of growth hormone deficiency in children.
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