Vascular constriction

Vascular constriction/bronchial cons trie tion/allergic inflamm. platelet ag... [Pg.171]

Vascular constriction. The first mechanism to occur is vascular constriction. Immediately after a blood vessel is cut or severed, the vascular smooth muscle automatically constricts. This results in a decrease in the flow of blood through the vessel that helps to limit blood loss. The vasoconstriction is caused by several factors ... [Pg.233]

When the extent of the trauma to the vessel is increased, the degree of vascular constriction is increased. Accordingly, a sharply cut blood vessel bleeds far more profusely than a blood vessel damaged by a more crushing injury. The vasoconstriction may last for many minutes or hours, thus... [Pg.233]

The primary neural control of total peripheral resistance is through sympathetic nerves. The diameter of blood vessels is controlled by the tonic activity of noradrenergic neurons. There is a continuous outflow of noradrenergic impulses to the vascular smooth muscle, and therefore some degree of constant vascular constriction is maintained. An increase in impulse outflow causes further contraction of the smooth muscle, resulting in greater vasoconstriction. A decrease in impulse outflow permits the smooth muscle to relax, leading to vasodilation. [Pg.86]

Mast cells Histamine Smooth muscle contraction Increased vascular permeability Vascular constriction Mucus production... [Pg.793]

Stimulates alpha-adrenergic receptors, producing vascular constriction of the capillaries within the nasal mucosa... [Pg.177]

Duckers HJ, Boehm M, True AL, Yet SF, San H, Park JL, Clinton Webb R, Lee ME, Nabel GJ, Nabel EG (2001) Heme oxygenase-1 protects against vascular constriction and proliferation. Nat Med 7 693-698... [Pg.294]

Morikawa S, Takabe W, Mataki C, Ranke T, Itoh T, Wada Y, Izumi A, Saito Y, Hamakubo T, Kodama T (2002) The effect of statins on mRNA levels of genes related to inflammation, coagulation, and vascular constriction in HUVEC. Human umbilical vein endothelial cells. J Atheroscler Thromb 9 178-183... [Pg.296]

Cerebral Events During Progressive Vascular Constriction... [Pg.461]

Adatia et al. (1993) exposed a patient with chronic obstructive pulmonary disease (COPD) to 80 ppm NO, observing a considerable improvement of oxygen exchange and a reduction in lung vascular constriction. Adnot et al. (1993) examined a larger group of COPD patients, substantiating... [Pg.444]

The initial phase of the process is vascular constriction. This limits the flow of blood to the injured area. [Pg.251]

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