| vasopressor reflex | Vasoconstriction caused by stimulation of certain afferent fibres, e.g., in vagus nerve. (05 Mar 2000) |
|---|---|
| vasopuncture | The act of puncturing a vessel with a needle. (05 Mar 2000) |
| vasoreflex | A reflex that influences the caliber of blood vessels. (05 Mar 2000) |
| vasorelaxation | Reduction in tension of the walls of the blood vessels. (05 Mar 2000) |
| vasosection | Incision into or division of the vas deferens. Synonym: vasosection. Origin: vaso-+ G. Tome, incision (05 Mar 2000) |
| vasosensory | 1. Relating to sensation in the blood vessels. 2. Denoting sensory nerve fibres innervating blood vessels. (05 Mar 2000) |
| vasospasm | The sudden decrease in the internal diameter of a blood vessel that results from contraction of smooth muscle within the wall of the vessel. This causes a decrease in blood flow, but an increase in systemic vascular resistance. Synonym: vasospasm. (27 Sep 1997) |
| vasospastic | Relating to or characterised by vasospasm. Synonym: angiospastic. (05 Mar 2000) |
| vasostimulant | 1. Exciting vasomotor action. 2. An agent that excites the vasomotor nerves to action. Synonym: vasotonic. (05 Mar 2000) |
| vasostomy | Establishment of an artificial opening into the deferent duct. Origin: vaso-+ G. Stoma, mouth (05 Mar 2000) |
| vasothrombin | Thrombin derived from the lining cells of the blood vessels. (05 Mar 2000) |
| vasotocin | <protein> Cyclic nonapeptide, related to vasopressin but found in birds, reptiles and some amphibians. (18 Nov 1997) |
| vasotomy | Incision into or division of the vas deferens. Synonym: vasosection. Origin: vaso-+ G. Tome, incision (05 Mar 2000) |
| vasotonia | The tone of blood vessels, particularly the arterioles. Synonym: angiotonia. Origin: vaso-+ G. Tonos, tone (05 Mar 2000) |
| vasotonic | 1. Relating to vascular tone. Synonym: angiotonic. 2. An agent that increases vascular tension. Synonym: vasostimulant. (05 Mar 2000) |