vasoconstricción
Sign in to saveAlso 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
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
Research
48,843 papers- Reversible Cerebral Vasoconstriction Syndrome for the Internist-A Narrative Review.The American journal of medicine · 2025
- [Hypoxic pulmonary vasoconstriction].Der Anaesthesist · 1996
- In vivo quantitative photoacoustic monitoring of corticosteroid-induced vasoconstriction.Journal of biomedical optics · 2023
- Serine carboxypeptidases in regulation of vasoconstriction and elastogenesis.Trends in cardiovascular medicine · 2009
- Reversible cerebral vasoconstriction syndrome: current and future perspectives.Expert review of neurotherapeutics · 2011
via PubMed
Wikidata facts
- Instance of
- biological process
- Image
- Vasoconstriction - Constricted blood vessel.jpg
Show 5 more facts
- Commons category
- Vasoconstrictors
- opposite of
- vasodilation
- topic's main category
- Category:Vasoconstrictors
- has effect
- blood pressure
- exact match
- purl.obolibrary.org/obo/GO_0042310
Sources (2)
via Wikidata · CC0
Article · Español
En fisiología, se denomina vasoconstricción al estrechamiento de los vasos sanguíneos, es decir a la disminución de su diámetro, es el fenómeno contrario a la vasodilatación que consiste en el aumento del diámetro de un vaso sanguíneo. La vasoconstricción aumenta la resistencia al paso de la sangre (resistencia vascular) y por tanto disminuye el flujo de sangre en el vaso afectado. El organismo provoca vasoconstricción de forma automática al aumentar la actividad del sistema nervioso simpático, la cual promueve la contracción del músculo liso situado en la pared del vaso sanguíneo y provoca su estrechamiento. También se produce vasoconstricción con el empleo de determinados medicamentos llamados vasoconstrictores, por ejemplo la adrenalina.
Abstract from DBpedia / Wikipedia · CC BY-SA