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  #1  
Old 05-31-2011
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Vascular T.P.R

does T.P.R(TOTAL PERIPHERAL RESISTANCE) AFFECTS SYSTOLIC BLOOD PRESSURE?OR DIASTOLIC B.P?
n wat is the effect of alpha1 n beta2 receptors on T.P.R?n hence SBP or DBP?
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Old 05-31-2011
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Originally Posted by sana akbar View Post
does T.P.R(TOTAL PERIPHERAL RESISTANCE) AFFECTS SYSTOLIC BLOOD PRESSURE?OR DIASTOLIC B.P?
n wat is the effect of alpha1 n beta2 receptors on T.P.R?n hence SBP or DBP?
TPR affects Diastolic BP.

Alpha causes constriction which will reduce vessel radius thus increasing TPR
Beta 2 will result in relaxation, which will increase vessel radius thus decreasing TPR.

Ex. When you get up off the chair, Alpha stimulation will occur, preventing sudden drop in BP by causing increase in TPR!
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Old 05-31-2011
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Originally Posted by patelMD View Post
TPR affects Diastolic BP.

Alpha causes constriction which will reduce vessel radius thus increasing TPR
Beta 2 will result in relaxation, which will increase vessel radius thus decreasing TPR.

Ex. When you get up off the chair, Alpha stimulation will occur, preventing sudden drop in BP by causing increase in TPR!
Memory block. What controls systolic BP?
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Old 05-31-2011
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Originally Posted by apx85 View Post
Memory block. What controls systolic BP?
..........SV?
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Old 05-31-2011
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Originally Posted by bebix View Post
..........SV?
Yep!

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Cardiovascular-, Physiology-

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