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  1. Function

    The primary function of vasodilation is to increase blood flow in the body to tissues that need it most. This is often in r… 展开

    Vasodilation - Wikipedia

    • Vasodilation, also known as vasorelaxation, is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. Blood vessel walls are composed of endothelial tissue and a basal membrane lining the lumen of the vessel, concentric smooth muscle layers on top … 展开

    Mechanism

    A basic understanding of cardiac output, vascular resistance, and blood pressure is necessary to understand the causes and impacts of vasodilation. Cardiac output is defined as the amount of blood pumped through the hear… 展开

    Causes

    The vasodilating action of activation of beta-2 receptors (such as by adrenaline) appears to be endothelium-independent.
    As referenced in the explanation of smooth muscle physiology, smooth muscle within the tunica medi… 展开

    Treatment

    These drugs can keep vessels staying opened or help vessels refrain from being narrowed.
    Angiotensin II receptor blockers
    ACE inhibitors展开

    Therapeutic applications

    Vasodilators are used to treat conditions such as hypertension, wherein the patient has an abnormally high blood pressure, as well as angina, congestive heart failure, and erectile dysfunction, and where maintaining a lower blood pr… 展开

     
  1. Widening of blood vessels

    Vasodilation, also known as vasorelaxation, is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles.
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  2. Vasodilation: What Causes Blood Vessels to Widen - Cleveland Clinic

  3. Vasodilatory shock - Wikipedia

  4. Nitrovasodilator - Wikipedia

  5. Vasodilation: What it is, causes, and more - Medical …

    2020年1月3日 · Vasodilation assists inflammation by enabling the delivery of oxygen and nutrients to damaged tissues. Vasodilation is what causes inflamed areas of the body to appear red or feel warm.

  6. Vasodilation: Circulation Role and Vasodilator Types - Verywell …

  7. Vasodilation: Your Blood Vessels Opening - Healthline

    2018年11月2日 · Vasodilation is the widening of your blood vessels. It happens when smooth muscles found in the walls of arteries or large veins relax, allowing the blood vessels to become more open. This leads...

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  8. 血管收縮 - 维基百科,自由的百科全书

    血管收縮 (vasoconstriction),亦即 血管收窄,是指體內 血管 管腔收窄,這會造成 血壓 的上升。. 它的相反過程稱為 血管舒張。. 血管收縮可以是由 血管收縮劑 造成。. 血管收縮劑是針對特定的受體,如 抗利尿激素 受體或 腎上腺素 受體 …

  9. Vasodilation - Simple English Wikipedia, the free encyclopedia

  10. Arteriolar vasodilator - Wikipedia

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