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.
There are various kinds of blood vessels: 1  Arteries. 2  Elastic arteries. 3  Distributing arteries. 4  Arterioles. 5  Capillaries (the smallest blood vessels). 6  Venules. 7  Veins. 8  Large collecting vessels, such as the subclavian vein, the jugular vein, the renal vein and the iliac vein.  Definition. Information. Vasoconstriction is the narrowing (constriction) of blood vessels by small muscles in their walls. When blood vessels constrict, the flow of blood is restricted or slowed. Vasoconstriction may be slight or severe. It may result from disease, medication, or psychological conditions. Medications that cause vasoconstriction include: 1  Decongestants, including pseudoephedrine. 2  Cough and cold combinations.  From Wikipedia, the free encyclopedia. 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 con•strict /kənˈstrɪkt/USA pronunciation v. con•stric•tive,adj. See-strict-. 1  to (cause to) be tight, narrower, or smaller; compress: [no object]The blood vessels constricted immediately.[~ + object]This medicine will constrict the blood vessels.  vasoconstrictor (vā´zōkənstrik´tur) , n (vasopressor), an agent that causes a rise in blood pressure by constricting the blood vessels. In local areas, it causes constriction of the arterioles and capillaries. 1 Vasoconstrictor agents. 2  vasoconstrictor center. 3  vasoconstrictor center. 4  vasoconstrictor center. 5  vasoconstrictor center. 6  vasoconstrictor fibers. 7  vasoconstrictor fibers. 8  vasoconstrictor fibers. 9  vasoconstrictor nerve. Translations for 'constrict'. 1  British English: constrict If a part of your body, especially your throat, is constricted or if it constricts, something causes it to become narrower. 2  VERBSevere migraine can be treated with a drug which constricts the blood vessels.  Examples of CONSTRICT. 1  The drug is used to constrict blood vessels. 2  The declining economy has constricted job opportunities. 3  a life constricted by poverty and disease. 4  He felt constricted by their notions of what was proper. Full Definition of CONSTRICT. transitive verb. 1. a: to make narrow or draw together. 2. : to stultify, stop, or cause to falter: inhibit. intransitive verb. : to become constricted. — con·stric·tive \-ˈstrik-tiv\ adjective Browse the dictionary. constitutionalism noun. constitutionality noun. constrain verb. constrained adjective. constraint noun. constrict verb. construct1 verb. Definition from the Longman Dictionary of Contemporary English. Advanced Learner's Dictionary. Dictionary results for constrict. Dictionary pictures of the day.
https://en.wikipedia.org/wiki/Blood_vessel http://www.healthcentral.com/encyclopedia/adam/vasoconstriction-4015435/overview/ https://en.wikipedia.org/wiki/Vasoconstriction http://www.wordreference.com/definition/constrict http://medical-dictionary.thefreedictionary.com/vasoconstrictor http://www.collinsdictionary.com/dictionary/english/constrict http://www.merriam-webster.com/dictionary/constrict http://www.ldoceonline.com/dictionary/constrict
constricts blood vessels definition