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Definition of Vasoconstriction

Vasoconstriction: Narrowing of the blood vessels resulting from contracting of the muscular wall of the vessels. The opposite of vasodilation.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=5964
Last Editorial Review: 3/26/1998 2:29:00 PM

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