Pertaining to the walls of the blood vessels.
Referring to the control of the diameter of blood vessels.
To the nerves and muscles that control the diameter of blood vessels.
Controlling the muscular walls of blood vessels, especially arteries, and therefore their diameter.
To the nerves that innervate the smooth muscle in the walls of arteries and veins, and thereby alter or preserve vascular tone. Sympathetic impulses to all arteries and veins maintain normal constriction. More impulses per second cause vasoconstriction; fewer impulses per second, vasodilation. For example, if a stressful stimulus, such as hemorrhage, causes increased vasomotor nerve activity, vasoconstriction results, which limits blood loss and maintains blood pressure.
Controlling the narrowing and widening of blood vessels (vasoconstriction and vasodilation).