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Venous pressure

venous pressure

The blood pressure in a vein. It is usually measured to assess the filling pressure to the ventricle.


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Re: Marey's Law

... .. the significance is to maintain normal value of arterial blood pressure (ABP) rapidly as hypotention may cause fainting and coma if severe ... peripheral resistance . 3- inhibition of respiratory center to decrease venous blood which returns to the heart mainly by sucction blood through ...

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by DrHesham
Tue Oct 12, 2010 10:40 pm
 
Forum: Physiology
Topic: Marey's Law
Replies: 9
Views: 21937

Re: veins (alevel help!)

... smooth muscle, just not as much as arteries. If you ever get to watch a venous ablation surgery using ultrasound (I used to do ultrasound for these), ... to compensate for the low volume of blood and the resulting lower blood pressure.

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by Dibear
Mon Jun 14, 2010 5:55 pm
 
Forum: Physiology
Topic: veins (alevel help!)
Replies: 7
Views: 11785

veins (alevel help!)

... and give constriction of them. This accounts for blood shifting from venous compartments into arterial compartments, a mechanism that serves to increase blood pressure and compensate decreased pressure from bleeding, for example. Another name for ...

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by Swede
Mon Feb 22, 2010 10:54 pm
 
Forum: Physiology
Topic: veins (alevel help!)
Replies: 7
Views: 11785

veins (alevel help!)

... my sports textbook says that veins VENOconstrict and VENOdilate to aid venous return but in biology we are told that only arteries vasoconstrict ... says that veins have a thicker tunica externa so it can withstand the pressure when the blood pools but in biology arteries and veins have a tunica ...

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by laurenjane
Sat Mar 21, 2009 11:51 am
 
Forum: Physiology
Topic: veins (alevel help!)
Replies: 7
Views: 11785

Osmotic concentraion and blood

I am having difficulty with osmotic pressure and hydrostatic pressure. I was doing this question: The osmotic concentration of plasma proteins in the venous side of capillaries helps reduce the amount of interstitial fluid in tissues by inducing: ...

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by gear2d
Sun Aug 17, 2008 1:22 am
 
Forum: Human Biology
Topic: Osmotic concentraion and blood
Replies: 1
Views: 2764
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