vasodilatation


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vasodilation

 [vas″o-di-la´shun]
1. increase in the caliber of blood vessels.
2. a state of increased caliber of blood vessels. Extreme, abnormal vasodilation is called angiectasis. adj., adj vasodi´lative.

va·so·di·la·tion

(vā'sō-dī-lā'shŭn, vas-ō-),
Widening of the lumen of blood vessels.
Synonym(s): vasodilatation

vasodilatation

/vaso·di·la·ta·tion/ (-dĭ″lah-ta´shun) vasodilation.

va·so·di·la·tion

(vā'sō-dī-lā'shŭn)
Increase in the caliber of a blood vessel due to relaxation of smooth muscle fibers in the tunica media. This increases blood flow but decreases systemic vascular resistance.
Synonym(s): vasodilatation.

vasodilatation

Widening of blood vessels as a result of relaxation of the muscles in the walls. This allows a greater volume of blood to pass through in a given time. Compare VASOCONSTRICTION.

vasodilatation

widening of the lumen of a blood vessel, due to relaxation of the smooth muscle in its wall, mediated by neural (autonomic) control, local or blood-borne chemical factors, or rise in temperature. Syn vasodilation.

vasodilatation, vasodilation

a state of increased caliber of blood vessels.
References in periodicals archive ?
13] It decreases sympathetic outflow, inducing peripheral vasodilatation, thus reducing arterial pressure.
CoQ10 can prevent endothelial biomolecules from being damaged by inhibiting the lipid and protein peroxidation thanks to the antioxidant function, apart from the indirect effect on realization of vasodilatation (Yamashita and Yamamoto 1997, Gotz et al.
In the present work, mesenteric arteries from DOCA hypertensive mice presented an impaired vasodilatation to acetylcholine, when compared with normotensive SHAM mice (not shown), demonstrating that DOCA mice presented an endothelium dysfunction as previously reported (Landmesser et al.
The number of mast cells (which promote vasodilatation, angiogenesis, and fibrosis) was significantly higher in lesional than in nonlesional skin of patients with rosacea [10].
GTN is a nitric oxide donor that produces endothelial independent vasodilatation and has been shown to increase digital blood flow in patients with primary Raynaud's phenomenon and limited cutaneous systemic sclerosis.
Des scientifiques viennent en effet de demontrer que rechauffer ses extremites favorise la vasodilatation des petits vaisseaux, et donc l'endormissement.
The increased speed of blood flow, in the animals treated with sildenafil citrate, can be attributed to drug-generated retinal vasodilatation.
In this study, Sildenafil with fetal growth restriction was used in an attempt to induce vasodilatation and improve uteroplacental perfusion resulting in improved Doppler indices.
Consuming large amounts of watermelon has also been correlated with improved cardiovascular function because it improves blood flow via vasodilatation (relaxation of blood pressure).
Selective pulmonary vasodilatation by inhalation of the vasoactive agent is an appealing concept to circumvent the risk of hypotension and worsening ventilation/ perfusion mismatch which occurs with systemic vasodilators (2).
It rapidly acts against CIN by causing vasodilatation, improvement of blood flow in the renal medulla, and antioxidant properties2,6.
This process, known as "cutaneous vasodilatation," can lead to shunting of blood away from vital organs, including the heart.