Physiology 3120 Lecture Notes - Lecture 21: Sinoatrial Node, Vasoconstriction, Urinary System

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Starak Leture 
-NE released o to heart ireases HR, ireases SV, ireases CO ad thus also ireases MAP
-aldosteroe is horoe that regulates salt ad ater o  kides
-if drik a lot of ater, ad salt is also retaied the ater is also retaied ireases oerall
lood olue
-if irease lood olue, the also irease CO ad MAP
AgII is a doule ha as orks through NE ad aldosteroe to irease MAP
-although ai purpose of asopressi is to reasor ater, it also has asoostritio effets
he i high o leadig to irease i MAP
-edothelial ells that lie BV release horoe alled edotheli he daaged to ause
asoostritio
-asodilate ie: essels ide thus less resistae ad less MAP
-he E ids to BETA-adreergi reeptors i BV, it auses asodilatio i skeletal ad ardia
usle ad lier
-akes sese as i fight/flight, at MORE lood to go to skeletal ad ardia usle ad
lier stores gloge hih is roke do ito gluose
-akes sese as he daage tissues, at ore lood to flo there so a repair
-edothelial ells i the alls of BV produe prostagladis
-a hage pressure i garde hose  hagig the flo out of tap ie: CO OR  hagig
radius of garde hose to hage resistae ie: TPR
CO
-less flo out of tap = less pressure i hose derease CO = derease MAP
-ore flo out of tap = ore pressure i hose irease CO = irease MAP sho
TPR
-kik i hose to derease radius = area efore kik has ireased resistae ad ireased
pressure
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