vasodilation - significado y definición. Qué es vasodilation
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Qué (quién) es vasodilation - definición

INCREASE IN THE INTERNAL DIAMETER OF BLOOD VESSELS DUE TO RELAXATION OF SMOOTH MUSCLE CELLS
Vasodilator; Vasodilatation; Vasodilators; Vasodialation; Vasomotor system; Vasomotor fibers; Vasodilator agents; Vasodilative; Peripheral vasodilators; Vasodilatory; Vaso-dilation; Vasorelaxation; Vasodilating medications; Vasoinhibitory; Vasodilate; Vasolidation; Vasorelaxant; Vasorelaxants; Coronary vasodilator; Dilation of blood vessels; Vasodialator
  • 3D Medical animation still showing normal blood vessel (L) vs. vasodilation (R)

vasodilation         
(also vasodilatation -?d??le?'te??(?)n)
¦ noun the dilatation of blood vessels, which decreases blood pressure.
Derivatives
vasodilator noun
vasodilatory adjective
Vasodilation         
Vasodilation is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles.
Vasodilator         
·adj Causing dilation or relaxation of the blood vessels; as, the vasodilator nerves, stimulation of which causes dilation of the blood vessels to which they go. These nerves are also called vaso-inhibitory, and vasohypotonic nerves, since their stimulation causes relaxation and rest.

Wikipedia

Vasodilation

Vasodilation, also known as vasorelaxation, is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. The process is the opposite of vasoconstriction, which is the narrowing of blood vessels.

When blood vessels dilate, the flow of blood is increased due to a decrease in vascular resistance and increase in cardiac output. Therefore, dilation of arterial blood vessels (mainly the arterioles) decreases blood pressure. The response may be intrinsic (due to local processes in the surrounding tissue) or extrinsic (due to hormones or the nervous system). In addition, the response may be localized to a specific organ (depending on the metabolic needs of a particular tissue, as during strenuous exercise), or it may be systemic (seen throughout the entire systemic circulation).

Endogenous substances and drugs that cause vasodilation are termed vasodilators. Such vasoactivity is necessary for homeostasis (keeping the body running normally).

Ejemplos de uso de vasodilation
1. "Until now, it was widely thought that drugs like sildenafil had no effects on the human heart and that its only purpose was vasodilation in the penis and the lungs.