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Vasoconstrictor

vasoconstrictor

Something which causes vasoconstriction, or the narrowing of blood vessels so that less blood is able to flow through at a time. This can either be a chemical substance or a nerve.


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Re: Marey's Law

... the peripheral resistance ) 2- inhibition of adrenaline secretory center in the medulla oblongata of the brain stem ( adrenaline is a potent vasoconstrictor ) so, decreasing the peripheral resistance . 3- inhibition of respiratory center to decrease venous blood which returns to the heart ...

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by DrHesham
Tue Oct 12, 2010 10:40 pm
 
Forum: Physiology
Topic: Marey's Law
Replies: 9
Views: 21786

Re: smoking and high blood pressure (HELP!!!)

Nicotine causes the body to release Epinephrine into the bloodstream which acts as a vasoconstrictor. http://en.wikipedia.org/wiki/Vasoconstrictor

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by MichaelXY
Sun Nov 16, 2008 10:27 pm
 
Forum: Human Biology
Topic: smoking and high blood pressure (HELP!!!)
Replies: 3
Views: 1767

Re: Relationship between renal system and cardiovascular system?

... known that the kidney secrets (( Renin )) that converts Angiotensin 1 to Angiotensin 2 and it's known also that the final compound is a strong vasoconstrictor so it will affect the cardiovascular system >> goodluck himmel

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by himmel
Tue Jul 01, 2008 10:49 pm
 
Forum: Human Biology
Topic: Relationship between renal system and cardiovascular system?
Replies: 3
Views: 6287

Re: What kills (and what saves) a corpus luteum?

... degeneration of the capillary network supplying the corpus luteum, and * stimulates endothelial cells to produce endothelin-1, which is a local vasoconstrictor ...so the ever-increasing levels of PGF2 cut off the corpus luteum's blood supply, strangling it. In pregnant non-primates, it is known ...

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by jasonfahy
Mon May 05, 2008 4:58 pm
 
Forum: Human Biology
Topic: What kills (and what saves) a corpus luteum?
Replies: 3
Views: 11104


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