A major blood vessel that carries oxygenated blood from the heart to the tissues and forms part of the circulatory system. All arteries except the pulmonary artery carry oxygenated blood. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues. Blood is pumped from the ventricles into large elastic arteries that branch repeatedly into smaller and smaller arteries until the branching results in microscopic arteries called arterioles. The arterioles play a key role in regulating blood flow into the tissue capillaries. About 10 percent of the total blood volume is in the systemic arterial system at any given time.
Major arteries of the body of humans and most other vertebrates include: gills to the body.
Arterial embolization is the blocking of an artery by a clot of foreign material. This can be done as treatment to block the flow of blood to a tumor.
An arteriogram is an X-ray of arteries. The person receives an injection of a dye that outlines the vessels on the X-ray. arteriography is the procedure used to X-ray arteries.
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Related categories• ANATOMY AND PHYSIOLOGY
Source: National Cancer Institute
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