BMS 430 exam 1 Questions and Answers 100% Verified
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Course
BMS 430
Institution
BMS 430
GH produced by what? - somatotrophs
what inhibits GH - glucose and mental stress
what increases GH - physical stress and exercise
what happens when you have too much GH? - Giantism: prior to puberty
Acromegaly: after puberty
What happens when you have too little GH? - dwarfism: individuals do ...
BMS 430 exam 1
GH produced by what? - somatotrophs
what inhibits GH - glucose and mental stress
what increases GH - physical stress and exercise
what happens when you have too much GH? - Giantism: prior to puberty
Acromegaly: after puberty
What happens when you have too little GH? - dwarfism: individuals do not produce GHRH
pygmies: not alot of igf-1 and no GH receptor on liver
what does GH do? - increase in size, cell division, and protein uptake
Hypothalamic control of GH - + GHRH (somatocrinin)
- GHIH (somatostatin)
Prolactin produced by what? - lactotrophs
what is prolactin responsible for? - initiation of lactation, maintaining lactation
(acts differently in different species)
What inhibits prolactin? - Progesterone inhibits large quantities of prolactin
What is the hypothalamic control on prolactin? - negative control by dopamine
, what maintains prolactin? - suckling
what happens when you have too much prolactin? - probably pituitary tumor causing
spontaneous lactation in men and women
what happens when you have too little prolactin? - sheehan's no prolactin is produced and no
lactation occurs
what produces TSH? - thyrotrophs
what is TSH/ TH responsible for? - increase or decrease in metabolism, follows circadian rhythm
What increases TSH - feasting, exercise, and pregnancy
what decreases TSH - fasting
what happens when you have too much TH - Graves disease: increase in metabolism, more
energy, higher temperature
what happens when you have too little TH - Cretinism in fetus: mental retardation and nervous
system issues
Myxedema after birth: cold lethargic, puffy look to eyes
what is the purpose of ADH - to increase water re absorption through the collecting duct cells in
the kidney and in sweat glands
what system does ADH use in the kidneys? - pKa
How is ADH regulated - osmoreceptors in the hypothalamus
baroreceptors in the heart
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