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vasoconstriction is when some blood vessels (arteries, arterioles, etc) constrict and essentially increase the impedance to blood flow. This is known as vascular resistance, and is a major contributor to blood pressure (hypertension).
Blood vessels are usually in a state of relative constriction, but can constrict further in respone to cold (thermoregulation), to low blod volume or low blood pressure (shock/maintaining a normotensive state/maintaining perfusion pressure) or to signals from the nervous system, which can be replicated by the administration of drugs (e.g. adrenalin).
Treatment for vasoconstriction would include the use of vasodilators- alpha adrenoceptor antagonists, or calcium-channel blockers. The latter group of drugs is often used in the treatment of hypertension.
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What vessels does vasoconstriction occur?
Does vasoconstriction make vessels smaller?
How would you explain what vasoconstriction mean?
Vasoconstriction is the narrowing of blood vessels.
How do you use Vasoconstriction in a sentence?
Vasoconstriction is the term used for constriction of the blood vessels. An example of a sentence using the word "vasoconstriction" is "Exposure to extreme cold results in vasoconstriction of the extremities and surface of the body. "
Do systemic vasoconstriction decreases blood pressure?
no, vasoconstriction increases blood pressure
What are the two processes in a cycle pattern rather than vasoconstriction happening?
vasoconstriction and vasolidation
What temperature produce vasoconstriction at humans?
cold weather causes vasoconstriction. Vasoconstriction restricts blood flow near the skin, so less heat is lost through the skin.
What is vasoconstriction?
Vasoconstriction is the constriction or narrowing of blood vessels by small muscles in their walls, slowing or blocking blood flow. Vasoconstriction is the constriction of blood vessels that increases blood pressure.
What is the opposite of vasoconstriction?
Vasodilationvasodilation
What is the opposite of vasodilation?
Vasoconstriction
Who can unscramble this wordCritsovonnastico?
vasoconstriction
What does vasoconstriction and vasodilation mean?
Vasoconstriction means the constriction of blood vessels.Vasodilation means there is more banter swag in the penis
Does systemic vasoconstriction decrease blood pressure?
No. Vasoconstriction is a squeezing of the veins. This is like putting your thumb at the end of a garden hose. The constriction of the flow increases the pressure. The water shoots out faster from the hose when your thumb is blocking the way. If the entire hose were to tighten, as in vasoconstriction, the same effect happens.--From Wikipedia: Vasoconstriction"Generalized vasoconstriction usually results in an increase in systemic blood pressure..."
