A mechanism that results in a decrease in vessel lumen diameter, especially in arterioles, which in turn increases pressure within the vessel or creates a state of hemostasis.
A decrease in the diameter of blood vessels, which decreases blood flow and raises blood pressure.
Constriction of the vascular tree with the result of an increase in blood pressure.
Decrease in the diameter of the blood vessels which may occur for many reasons, both normal and abnormal.
Narrowing (constriction) of a blood vessel, which can slow or stop blood flow. The autonomic nervous system controls the smooth muscle in blood vessel walls that constricts the blood vessel. The body uses vasoconstriction and vasodilation to help distribute blood throughout the body.
A decrease in the diameter of blood vessels, especially arteries. This results from activation of the vasomotor center in the brain, which brings about contraction of the muscular walls of the arteries and hence an increase in blood pressure.
Narrowing of blood vessels which results in the blood flow to a particular part of the body being reduced. Cold will cause vasoconstriction of the vessels under the skin, thus reducing heat loss. shock due to injury or loss of blood will also provoke vasoconstriction.
The narrowing of any blood vessel, especially the arterioles and veins in the skin, stomach, and intestines.
The constriction of blood vessels, primarily caused by vasomotor activity, resulting in their reduced diameter.
Constriction of blood vessels leads to decreased blood circulation in a specific area of the body. When exposed to cold temperatures, vasoconstriction occurs beneath the skin to minimize heat loss from the body.