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Encyclopedia > Vasodilation
The system of arteries

The blood vessels are part of the circulatory system and function to transport blood throughout the body.


Types

Glossary

  • Vasoconstriction is the constriction of blood vessels (narrowing, becoming smaller in cross-sectional area) by contracting the vascular smooth muscle in the vessel walls.

Vasoconstrictors are used to increase blood pressure or to reduce local blood flow.

  • Vasodilation is the dilation of blood vessels (widening) by relaxing the smooth muscle in the vessel walls.

Vasodilation and vasoconstriction are used antagonistically as a method of thermoregulation in homeotherms.


See also


Cardiovascular system

Heart - Aorta - Arteries - Arterioles - Capillaries - Venules - Veins - Venae cavae - Pulmonary arteries - Lungs - Pulmonary veins - Blood


  Results from FactBites:
 
Vasodilator - Wikipedia, the free encyclopedia (187 words)
A vasodilator is a substance that causes blood vessels in the body to become wider by relaxing the smooth muscle in the vessel wall, or vasodilation.
Atrial natriuretic peptide (ANP) - a weak vasodilator.
Its mild vasodilating effects redden the eyes of cannabis smokers.
Patent 6,007,836 (6290 words)
The vasodilator is stored and contained in the at least one middle layer of the transdermal patch, which functions as a vasodilator reservoir conventionally in the manner of transdermal medication patches to deliver the vasodilator to the skin surface when the patch is adhered to the skin of the user.
Vasodilator dispensing can be controlled by controlling the permeability of the relatively more releasable milder adhesive coated on the microhole membrane inner surface, by controlling the thickness of the microhole membrane inner layer, and by varying the size, number and spacing of the microholes.
The vasodilator material is mixed with a mild adhesive, and the vasodilator-mild adhesive mixture is spread in a thin, slightly moist layer on the inner surface of the condom.
  More results at FactBites »


 

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