BMS 430 exam1 Questions and Answers

BMS 430 exam1 Questions and AnswersGH 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) ONLYSTUDENTS STORE 2025 ALL THEBESTONLYSTRUDENTS STORE 2 DONOT COPYProlactin 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? ONLYSTUDENTS STORE 2025 ALL THEBESTONLYSTRUDENTS STORE 3 DONOT COPY ~~~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 andinsweat glands what system does ADH use