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An increase in the internal diameter of blood vessels, especially arterioles or capillaries, usually resulting in a decrease in blood pressure during an acute inflammatory response. The flow of blood through the body of an animal, enabling the transport of nutrients to the tissues and the removal of waste products. The process that increases the size of a blood vessel via the renin-angiotensin system. A process that results in an increase in the diameter of an artery during the norepinephrine-epinephrine response to blood pressure change. A process whereby the extent of vascular smooth muscle contraction is reduced. Vascular smooth muscle relaxation is mediated via a decrease in the phosphorylation state of myosin light chain. This can be achieved by removal of calcium from the cytoplasm to the sarcoplasmic reticulum lumen through the action of Ca2+ ATPases leading to a decrease myosin light chain kinase activity, and through calcium-independent pathways leading to a increase in myosin light chain phosphatase activity. A circulatory process that occurs at the level of the vasculature. Any process that modulates the frequency, rate or extent of increases in the diameter of blood vessels. An increase in the internal diameter of an artery, triggered by vasomotor suppression, during the chemoreceptor response to decreased blood pressure. Any process that modulates the size of blood vessels. An increase in the internal diameter of blood vessels, especially arterioles or capillaries, usually resulting in a decrease in blood pressure. The process by which acetylcholine signaling causes vasodilation, resulting in a change in blood pressure. Any process that activates or increases the frequency, rate or extent of vasodilation. Any process that stops, prevents or reduces the frequency, rate or extent of vasodilation. Ensuring that a tube is of the correct length and diameter. Tube size must be maintained not only during tube formation, but also throughout development and in some physiological processes.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: vasodilation
Acc: GO:0042311
Aspect: Biological Process
Desc: An increase in the internal diameter of blood vessels, especially arterioles or capillaries, usually resulting in a decrease in blood pressure.
Synonyms:
  • positive regulation of blood vessel size
  • vasodilatation
Proteins in PDR annotated with:
   This term: 51 [Search]
   Term or descendants: 101 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0042311 - vasodilation (interactive image map)
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