انقباض عروق

Also known as GO:0042310, negative regulation of blood vessel size

Vasoconstriction is the narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels, in particular the large arteries and small arterioles. The process is the opposite of vasodilation, the widening of blood vessels. The process is particularly important in controlling hemorrhage and reducing acute blood loss. When blood vessels constrict, the flow of blood is restricted or decreased, thus retaining body heat or increasing vascular resistance. This makes the skin turn paler because less blood reaches the surface, reducing the radiation of heat. On a larger leve

In the Vinony graph

Vinony's link graph records 761 inbound references to انقباض عروق, and connects out to ventricle of the heart, stimulant and endothelium.

It sits within the topics Cardiovascular physiology and Vasoconstrictors.

Vinony links it to 30 Wikipedia language editions.

Key facts

Anatomy.Name: Vasoconstriction
Anatomy.Caption: Schematic depiction of relaxed vessel wall (left) and vasoconstriction (right)
Anatomy.Image2: Microvessel.jpg
Anatomy.Caption2: Transmission electron micrograph showing vasoconstriction of a microvessel by pericytes and endothelial cells resulting in the deformation of an erythrocyte (E)

via Wikipedia infobox