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Vasodilation refers to the widening of blood vessels, which increases blood flow and decreases blood pressure. Conversely, vasoconstriction is the narrowing of blood vessels, reducing blood flow and increasing blood pressure. These processes are regulated by the autonomic nervous system and serve to maintain blood flow and pressure within normal limits.

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Briefly explain what vasodilation is?

Vasodilation is the widening of blood vessels resulting from relaxation of the muscular wall of the vessels. Usually occurs during exercise, so that more oxygenated blood can be pumped to the body's tissues. Vasodilation is the widening of blood vessels resulting from relaxation of the muscular wall of the vessels. Usually occurs during exercise, so that more oxygenated blood can be pumped to the body's tissues.


What causes vaodilation?

Corticotrpin is the harmone which increases vasodilation in our body. alcohol causes vasodilation


Does sympathetic activity cause vasodilation?

No, sympathetic activity typically causes vasoconstriction, not vasodilation.


What reduces cardiac afterload?

vasodilation, anemia, cirrhosis, shock states (results in massive vasodilation)


How do you describe a vasodilation mean?

Vasodilation means the widening of blood vessels that results from relaxation of the muscular walls of the vessels.


When is vasodilation bad?

Never. Unless you're bleeding, but if you're bleeding the body will undergo vasoconstriction not vasodilation so the answer is never.


Does the sympathetic system cause vasodilation?

Yes, the sympathetic nervous system can cause vasodilation in certain situations, such as during exercise or in response to stress. This is because the sympathetic system releases certain neurotransmitters that can relax blood vessels and increase blood flow to muscles and other tissues.


What promotes vasodilation?

Nitric Oxide


What are the symptoms of vasodilation?

Vasodilation is the widening of the blood vessels. The common symptoms are low blood pressure, dizziness, flushing, and light headedness.


How does the nervous system's ability to trigger vasoconstriction and vasodilation impact the body's overall physiological response?

The nervous system's ability to trigger vasoconstriction and vasodilation affects the body's physiological response by regulating blood flow. Vasoconstriction reduces blood flow, increasing blood pressure and redirecting blood to vital organs during stress or cold. Vasodilation increases blood flow, helping to cool the body and deliver nutrients during exercise or relaxation. These responses help maintain homeostasis and support various bodily functions.


The redness and heat of an inflamed area are due to a local hyperemia caused by?

chemicals released by the injured tissue cells and leukocytes cause the VASODILATION of the arterioles in the injured area and cause the local hyperemia to form accounting for the redness and heat.


Does cold have a vasodilation effect?

No, it has a vasoconstricting effect.