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BIO 669 PRACTICE EXAM QUESTIONS WITH CORRECT ANSWERS
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BIO 669 PRACTICE EXAM QUESTIONS WITH CORRECT ANSWERS
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BIO 669 PRACTICE EXAM QUESTIONSWITH CORRECT ANSWERS
What hormones are released by the anterior pituitary?
(secretes tropic hormones) - answer-adrenocorticotropic hormone (acth)
Melanocyte-stimulating hormone (msh)
Somatotropic hormones
-growth hormone (gh) somatotropic hormone
-prolactin somatotropic hormone
Glucoprotein hormones
-follicle-stimulating hormone (fsh) a glycoproteine
-luteinizing hormone (lh) a glycoproteine
-thyroid-stimulating hormone (tsh)
What do melanocyte-stimulating hormones do? - answer-promotes the pituitary
secretion of melanin (which darkens skin) and lipotropin
What is melanocyte-stimulating hormones target organ? - answer-anterior pituitary
(msh) is a melanotropic secretary cell type
What do adrenocorticotropic hormones (acth) do? - answer-regulates the release of
cortisol from the adrenal cortex
And initially a brief spurt of aldosterone.
Extra adrenal effects of acth is stimulation of melanocytes activation of tissue lipase.
Promotes cholesterole storage of adrenal to metabolise into steriod hormones
Acth is rapidly inactivated in the circulation and its deactivated form is removed by the
___________ and _______________? - answer-liver and kidneys, remove excess acth
in the circulating volume where it is inactivated
What does aldosterone do? - answer-a mineralcorticoid, its secretion causes sodium
retention and potassium excretion.
Helps with body fluid osmolality
What regulates aldosterone? - answer-renin-angiotensin-aldosterone system when
volume is low
What affects does cortisol have? - answer-anti inflammatory
What do glucocorticoids stimulate and increase of ? - answer-blood glucose levels
, What does thyroid-stimulating hormones do? - answer-regulates the activity of the
thyroid gland.
Increased iodide uptake;
What does growth hormone doe? - answer-normal tissue growth and maturation and
impacts aging, sleep, nutritional status, stress, and reproductive hormones.
What is growth hormones target organs? - answer-bone, muscle, liver
What is prolactin function? - answer-milk production
What is prolactins target organs? - answer-breast
What are somatotropic hormones? - answer-growth hormone
Prolactin
What does leutinizing hormone stimulate? - answer-progesterone release in women
Affects the sertoli cells in men
What does follicle stimulating hormone (fsh) do? - answer-increases estrogen
production in the ovaries of women
Increase testosterone production in men
What does beta-lipotropin affect? - answer-adipocytes and stimulate release of lipids
into blood stream
What does beta-endorphins affect? - answer-neural cells and work as analgesia to
reduce pain
What are glycoprotein hormones? - answer-follicle-stimulating hormone (fsh)
Luteinizing hormone
Thyroid-stimulating hormone
What do luteinizing hormone do? - answer-ovulation, progesterone production
Testicular growth, testosterone production
What are luteinzing hormones target organs? - answer-women: granulosa cells
Men: leading cells
What is the function of follicle-stimulating hormones? - answer-follicle maturation,
estrogen production
Spermatogenesis
What are the target organs of follicle-stimulating hormones? - answer-women:
granulosa cells
Men: sertoli cells
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