What is vasodilatation?
vasodilation is an increase in the inner diameter of the blood vessels or in the common tongue of the spread of blood vessels. It is the opposite of vasoconstriction. Blood vessels - including arteries, veins, arteriol, venules and capillaries - naturally have different sizes in the diameter of the inner diameter, depending on where it is located in the body. However, their diameter can usually manipulate drugs, some of the herbs and the body itself through the action of hormones produced and stored in the bloodstream, and the organs of the endocrine system or in response to certain unfavorable conditions. containers that give blood to the heart muscle. This is desirable because the heart attack is caused by narrowing or occlusion of the coronary artery that provides oxygenated blood of the heart muscle. If the heart is starved from oxygen, it will start to die and after it is dead, the tissue cannot be revived. Plaodilation caused by drugs such as nitroglycerin can help save lives.
sometimesthat vasodilatation arises from medical readiness, such as anaphylactic shock, which is a serious or life -threatening allergic reaction to allergen. Unlike the case of infarction, the vasodilation in anaphylaxis is not a good thing, because dilatation of blood vessels can cause a sufficiently severe drop in blood pressure to cause shock. Just as there are drugs that cause vasodilation to save lives, there are also medicines that will face it in cases such as anaphylactic shock. Epinephrine is one of these drugs.
The body also has its own mechanisms for controlling vasodilation and vasoconstriction. For example, epinephrine and norepinephrine, also known as adrenaline and noradrenaline, are hormones relaxed into the bloodstream after stimulating sympathetic division of the nervous system after stimulation. These hormones not only stimulate the heart to beat faster and more force, also cause dilatation of some arteriols in the areas of the body that need an increased supply of blood to maintain tissues alive and correctly fungily. The vasodilation and vasoconstriction are automatically and carefully regulated by a properly functioning body. They are also carefully monitored by healthcare workers who administer medicines that affect the diameter of the patient's blood vessels.