artery

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artery,

blood vessel that conveys blood away from the heartheart,
muscular organ that pumps blood to all parts of the body. The rhythmic beating of the heart is a ceaseless activity, lasting from before birth to the end of life. Anatomy and Function

The human heart is a pear-shaped structure about the size of a fist.
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. Except for the pulmonary artery, which carries deoxygenated blood from the heart to the lungs, arteries carry oxygenated blood from the heart to the tissues. The largest arterial trunk is the aortaaorta
, primary artery of the circulatory system in mammals, delivering oxygenated blood to all other arteries except those of the lungs. The human aorta, c.1 in. (2.54 cm) in diameter, originates at the left ventricle of the heart.
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, branches of which divide and subdivide into ever-smaller tubes, or arterioles, until they terminate as minute capillariescapillary
, microscopic blood vessel, smallest unit of the circulatory system. Capillaries form a network of tiny tubes throughout the body, connecting arterioles (smallest arteries) and venules (smallest veins).
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, the latter connecting with the veinsvein,
blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry deoxygenated blood. The oxygen-depleted blood passes from the capillaries to the venules (small veins).
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 (see circulatory systemcirculatory system,
group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as composed of two parts: the systemic circulation, which serves the body as a whole except for the lungs, and the
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). Other important arteries are the subclavian and brachial arteries of the shoulder and arm, the carotid arteries that lead to the head, the coronary arteries that nourish the heart itself, and the iliac and femoral arteries of the abdomen and lower extremities. The walls of the large arteries have three layers: a tough elastic outer coat, a layer of muscular tissue, and a smooth, thin inner coat. Arterial walls expand and contract with each heartbeat, pumping blood throughout the body. The pulsating movement of blood, or pulsepulse,
alternate expansion and contraction of artery walls as heart action varies blood volume within the arteries. Artery walls are elastic. Hence they become distended by increased blood volume during systole, or contraction of the heart.
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, may be felt where the large arteries lie near the body surface.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

artery

[′ärd·ə·rē]
(anatomy)
A vascular tube that carries blood away from the heart.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

artery

any of the tubular thick-walled muscular vessels that convey oxygenated blood from the heart to various parts of the body
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Variation in branching pattern of dorsalis pedis artery. Int.
Dorsalis pedis artery (DPA) aneurysm, though uncommon, has been classically reported in the literature as either true aneurysm or psudoaneurysm secondary to trauma.
Doppler flow study showed normal flow in dorsalis pedis artery bilaterally.
However, the right foot was warm and pulsation was present in the dorsalis pedis artery at that time.
BOSTON--Bypass of a diseased dorsalis pedis artery in the foot can often resolve ischemic ulcers in patients with diabetes.
BOSTON -- Bypass of a diseased dorsalis pedis artery in the foot can often resolve ischemic ulcers, even in patients with diabetes.
Halpern, "Pseudoaneurysm of the dorsalis pedis artery," Injury, vol.
After a complicated clinical course which required heparin drip for myocardial infarction, the patient experienced upper GI bleeding and a cold left foot with absent pulse in the dorsalis pedis artery. On day 9 from initial exposure to heparin, clinical suspicion of heparin-induced thrombocytopenia with thrombosis (HITT) led to evaluation with HIT antibodies which were confirmed days later by an enzyme-linked immunosorbent assay (ELISA.
In 9 (18.37%) out of 49 patients of group 'A', either of the radial arteries couldn't be cannulated successfully and femoral or dorsalis pedis artery was tried.
The patient was able to actively move his ankle, as well as his toes, and both posterior tibialis artery and dorsalis pedis artery were palpable.