the constriction of the capillaries in the skin in response to cold temperatures.
Narrowing of a vessel lumen due to contraction of smooth muscle cells in the vessel wall.
A reduction in the diameter of arterioles due to the contraction of smooth muscles in the tunica media; elevates peripheral resistance; may occur in response to local factors, through the action of hormones, or from the stimulation of the vasomotor center.
A narrowing of the space within the walls (lumen) of a blood vessel; implicated in diseases such as hypertension.
the decrease in size of the lumen of a blood vessel, caused by contraction of smooth muscle in the wall of the vessel
Reduction of the inner diameter of vessels, especially constriction of arterioles, leading to decreased blood flow to a part.
narrowing of the small arteries.
Constriction or reduction in the diameter of a blood vessel
a decrease in the size of blood vessels.
The first stage in blood clotting in which the blood vessel constricts to reduce the flow of blood to the damaged area.
Constriction of a blood vessel resulting from action of smooth muscle in wall. Usually evoked by impulses in sympathetic nerve fibres. Vasoconstrictor 'tone' is continuous low-frequency flow of such impulses. Overall resistance to flow is increased and flow is reduced.
State in which blood vessels are tightened or narrowed. Can be caused by the nervous system sending messages to the blood vessels to constrict. Can also be induced by medications.
Diminution of the interior size of a blood vessel with resultant decrease in blood flow.
a decrease in the caliber (lumen) of blood vessels
The narrowing of a blood vessel to shrink a wound and reduce blood flow; occurs when a cold compress or ice is applied to the skin.
The narrowing of any blood vessel.
Narrowing of the blood vessels resulting from contracting of the muscular wall of the vessels. The opposite of vasodilation.
A tightening of the smooth muscles of blood vessels, resulting in a decrease in their inner diameter (caliber).
Decrease of local blood flow.
supranormal value of SSVRI (excessive afterload); therapy involves administration of vasodilators or ACE (Angiotensin Converting Enzyme) Inhibitors.
a narrowing or closing (constriction) of a blood vessel.
Constriction of a blood vessel, as by a nerve or drug.
Narrowing of blood vessels. This reduces the amount of blood flowing to that part of the body.
Constriction, or narrowing, of blood vessels. Vasoconstriction can lead to decreased blood flow and additional demands being placed on the heart.
Decrease in diameter of a blood vessel.
A process or condition that causes the constriction of the blood vessels.
the constriction of the blood vessels in order to reduce heat loss from the blood through the shin.
An induced narrowing of blood vessels.
Narrowing of blood vessels causing reduced blood flow to part of the body.
A decrease in the diameter of blood vessels.
a narrowing of the blood vessels
The constriction of blood vessels brought on by activation of the sympathetic division of the autonomic nervous system. Vasoconstriction occurs in emergencies, when blood is diverted from the skin and internal organs to the muscles. It is also crucial in mammalian thermoregulation; in response to excessive cold, blood is diverted from the skin to reduce heat loss.
a decrease of the size of a blood vessel caused by contraction of the smooth muscle in the wall of the vessel.
Decrease of the calibre of the blood vessels leading to a decreased blood flow AN vasodilation
The diminution of the calibre of vessels, especially constriction of arterioles leading to decreased blood flow to a part.
Vasoconstriction refers to constriction of the blood vessels.
A narrowing of a blood vessel, causing decreased blood flow to a part of the body.
narrowing of the blood vessels Humans as organisms
Derease of local blood flow.
A decrease in diameter of arterioles restricting blood flow to an organ or portion of the body
The narrowing of dermal blood vessels.
A narrowing of any blood vessel, especially the arterioles and the veins in the blood reservoirs of the skin and the abdominal viscera.
reduction of the diameter of a blood vessel because the muscle layers contract
Causing the narrowing or closing (constriction) of blood vessels.