criscito
Forum Newbie
Topics: 1
Posts: 1
|
i read in kaplan, and also watched the old videos that angiotensin II keeps the hydrostatic pressure in capillary constant and GFR is normal or minimum decreased.
i do not have the 2006-2007 renal videos but in the periph. circulation it says that proximal to the efferent there is an increase in pressure. this makes perfect sense. i also found questions that support this statement.
can s.o. confirm? thx!
|
| spinal shock
Forum Junior
Topics: 7
Posts: 63
|
angiotensen2 causes vasoconstriction of efferent arterioles increasing gfr and by this it will increase Na and HCO3 INCREASING CIRCULATORY VOLUME
|
| ommar
Forum Newbie
Topics: 0
Posts: 1
|
what i think is that as Angi II causes some constriction of afferent arteriole the flow downstream falls leading to a decreased pressure downnstream so decreased GFR but Angi II also causes a greater constriction of efferent arteriole which increases the pressure upstreams and compensates for the decreased GFR. so GFR remains either unchanged or sightly decreased. Maybe but this is how I remember it 
|
| new_n_lost
Politically InCorrect
Topics: 644
Posts: 5,910
|
Angiotensin II exerts a greater constrictor effect on the efferent arterioles than on the afferent. It effects both the arterioles but has a greater effect on the efferents.
___________________
FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
|
|
| |
| | | | |
