CNS 9: Hypothalamic Control Flashcards
wheere are the hypothalamus and the pituitary
how does the hypothalamus control pathways
where does the hypo send hormones
what is the difference between hypo signalling to the posterior and anterior pituitary
what happens to a mouse with lesions in the VMH? why?
what happens to a mouse with lesions in the LH? why?
what arcuate cells drive feeding
what arcuate cells inhibit feeding
what happens in the fasting state: what does ArcNPY inhibit? What does it excite? what does PVN do? what happens to feeding?
overall: how does Arc NPY DISINHIBIT feeding behaviour (make you hungry)
what is orexin? how is it involved in feeding?
what is the post prandial state?
after a meal: what does Arc-POMC produce and release? what does this chemical excite? what does it inhibit? how does this affect the sympathetic system? what happens to feeding?
overall: how does ArcPOMC inhibit feeding
what is the setpoint in feeding?
how does the hypothalamus infer weight?
what is leptin? what does it indicate?
what impact does leptin have on feeding in the ArcNPY path
what impact does leptin have on feeding in the ArcPOMC pathway
does your brain use leptin to signal ending a meal?
how does blood glucose inhibit feeding?
what do CCK, PYY, and GLP-1 do to inhibit feeding?
what does ghrelin do? (Ghrelin…gremlin…wants to eat)
where does ghrelin act?
what stops ghrelin release?
