BMS 430 exam 1 Questions and
Answers
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?
Answers
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?
