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10 Cards in this Set

  • Front
  • Back
all carrier proteins have a Tm except for ____. why?
the carrier protein carrying Na. B/c aldosterone can upregulate it.
explain why we get edema in CHF
heart not f'ning as a pump --> low effective circulating volume --> therefore conserve salt (thus, retain water)
how Na (i.e. volume) is regulated (where are the sensors and what do they do?
1. atrial stretch sensors -> ANP (decreases ADH, decrease vascular resis)
2. nerves adjacent to pulm caps -> inhibit SNS

1. carotid and aortic baroreceptors --> natriuresis
2. renal BP --> natriuresis

sensor Na+ concentration rather than volume
3 ways AII will cause Na conservation
1. vasoconstrict efferent arteriole
2. Na reabsorp in PT
3. aldosterone upregulation
when i have a question with
CHF, what is the FIRST THING THAT SHOULD COME TO MIND?? that it is a ____
NO 's effects on Na regulation
cause natriuresis and diuresis SEPARATE from vasodilatory properties
if you lose your pituitary, will adh secretion be impaired? what about thirst
ADH secretion = impaired
thirst mech still intact (b/c controlled by hypothal)
non-osmotic stimuli for ADH release
"vp vend"
-volume depletion
in states of Na conservation, can excrete as little as ____ mmol/day of Na+
1-2 mmol/day
in states of Na excess, can excrete as much as ___ mmol/day
800 mmol/day