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News in Physiological Sciences, Vol 6, 103-107, Copyright © 1991 by International Union of Physiological Sciences
ARTICLES |
M Gerova
Sympathetic stimulation induces a primary and secondary effect on smooth muscle of conduit coronary arteries. The former causes contraction, mediated by norepinephrine, and the latter, dilatation. The dilatation is due to endothelium-derived relaxing factor released as a consequence of the increased coronary blood flow.
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