What is vasodilatation?

4 Vasodilation can occur for many different reasons, from drugs to exercise. It is the opposite of vasoconstriction by which the blood vessels limit and narrow. Dilation of blood vessels leads to a decrease in blood pressure, while narrowing of the blood vessels leads to an increase. Whether one process is limited to a single body or organ system or can happen throughout the body. Vasodilators can be natural or artificial and may be internal or external. Some drugs are vasodilators; These are usually used to control high blood pressure. Dilation and narrowing of the blood vessels occur almost nonstop based on the amount of blood that is needed in any given part of the body on any Giokamžik. It can also occur due to various hormones or signals in the nervous system.

drugs that induce vasodilation are commonly used to treat several different conditions. Are often used to treat hypertension, a condition in whichHas one has a permanently high blood pressure. They can also be used to treat heart conditions such as angina and congestive heart failure by maintaining lower, healthier blood pressure. Maintaining lower blood pressure using drugs that lead to vasodilation can reduce the risk of many different heart diseases in people with abnormally high blood pressure.

In some warm -cut animals, vasodilation is one of the methods that is maintained by consistent and healthy temperature. When the external environment is very warm, some blood vessels of such animals extend and redirect the warm blood to the skin of the animals. When warm blood is near the skin, heat can escape into the environment and cool the animal to better temperatures. When the external environment is cold, vasoconstriction may occur and have the opposite effect, keep warm blood around the vital organs of the animal.

There are many different things inside and outside the human body that can cause vasodilation. Inside belongs histamine and acidMilk among many different chemicals that can cause blood vessels dilatation. Exercise and muscle work can also cause some blood vessels to expand. External causes can be as simple as the absence of excessive amounts of environmental noise and light. Tetrahydrocannabinol (THC), the active component of marijuana, also causes mild vasodilation and leads to redness of the eyes of marijuana users.