quiz 6 Flashcards
in homeostatic regulation, which mechanism receives information and processes it to “decide” on a command?
control center
where does a prohormone undergo further processing prior to packaging into a secretory granule?
golgi
what is an example of a short, negative feedback loop?
growth hormone = growth hormone releasing hormone
if a lower hormone concentration results in 50% of maximal response, what could have happened to a hormone receptor numbers on target cells?
increased
for tyrosine kinase receptor, on which domain does the tyrosine kinase activity occur
intracellular domain
which type of cell in the anterior pituitary releases growth hormone
somatotroph
what is removed from ADH or oxytocin as the hormone travels down the axon to the posterior pituitary?
neurophysin
what effect will low dietary iodide have on the activity of the Na/iodine symporter in the thyroid galnd?
stimulates
which thyroid hormone is produced when less thyroid hormone action is needed
reverse T3
which enzyme is downregulated in sick euthyroid syndrome, resulting in low T3
5’ deiodinase
if the disorder is in the pituitary gland in hyperthyroidism, what is the expectation for circulating levels of TSH?
high TSH
norepinephrine is the catecholamine primarily released from the sympathetic nerve terminals and brain T/F?
true
what effect do exogenous steroids have on ACTH production and release?
inhibit ACTH
what is a common adrenal cortex dysfunction to affect older dogs?
pituitary-dependent hyperadrenocorticism
which cell type predominates in the pancreatic islets of langerhans
beta cells
