Vasodilation Jesse Russell

ISBN: 9785512736418

Published: June 26th 2012

Paperback

160 pages


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Vasodilation  by  Jesse Russell

Vasodilation by Jesse Russell
June 26th 2012 | Paperback | PDF, EPUB, FB2, DjVu, talking book, mp3, RTF | 160 pages | ISBN: 9785512736418 | 7.55 Mb

High Quality Content by WIKIPEDIA articles! Vasodilation refers to the widening of blood vessels resulting from relaxation of smooth muscle cells within the vessel walls, particularly in the large arteries, smaller arterioles and large veins. The process is essentially the opposite of vasoconstriction, or the narrowing of blood vessels. When vessels dilate, the flow of blood is increased due to a decrease in vascular resistance. Therefore, dilation of arterial blood vessels (mainly arterioles) leads to a decrease in blood pressure.

The response may be intrinsic (due to local processes in the surrounding tissue) or extrinsic (due to hormones or the nervous system). Additionally, the response may either be localized to a specific organ (depending on the metabolic needs of a particular tissue, as during strenuous exercise), or systemic (seen throughout the entire systemic circulation).

Factors that result in vasodilation are termed vasodilators.



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