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.

artery

[′ärd·ə·rē]
(anatomy)
A vascular tube that carries blood away from the heart.

artery

any of the tubular thick-walled muscular vessels that convey oxygenated blood from the heart to various parts of the body
References in periodicals archive ?
Caption: Figure 5: The branches of pancreaticoduodenal artery. Macrospecimen (female, 63 years old).
Caption: Figure 6: A: abdominal aorta; 1: celiac trunk, 2: left gastric artery, 3: accessory left gastric artery, 4: second left gastroepiploic artery, 5: second posterior gastric artery, 6: terminal branches of the splenic arteries, 7: splenic arteries, 8: left gastroepiploic artery, 9: posterior gastric artery, 10: right gastroepiploic artery, 11: superior anteriorpancreaticoduodenal artery, 12: gastroduodenal artery, 13: posterior superior pancreaticoduodenal artery, 14: right gastric artery, 15: superior duodenal artery, 16: left hepatic artery, 17: accessory left hepatic artery, 18: intermediate hepatic artery, 19: cystic artery, 20: right hepatic artery, 21: proper hepatic artery, and 22: common hepatic artery.
Sakaguchi et al., "Hemodynamic assessment of celiaco-mesenteric anastomosis in patients with pancreaticoduodenal artery aneurysm concomitant with celiac artery occlusion using flow-sensitive four-dimensional magnetic resonance imaging," European Journal of Vascular and Endovascular Surgery, vol.
Kitajima, "Emergency embolization of a ruptured pancreaticoduodenal artery aneurysm associated with the median arcuate ligament syndrome," Journal of Gastroenterology and Hepatology, vol.
Eskandari, "Coil embolization of an inferior pancreaticoduodenal artery aneurysm associated with celiac artery occlusion," Cardiovascular Surgery, vol.
Ruptured pancreaticoduodenal artery aneurysms associated with celiac stenosis caused by the median arcuate ligament: a poorly known etiology of acute abdominal pain.
Endovascular management of ruptured pancreaticoduodenal artery aneurysms associated with celiac axis stenosis.
Abbreviations PDA: Pancreaticoduodenal artery IPDA: Inferior pancreaticoduodenal artery TAE: Transarterial embolization SMA: Superior mesenteric artery PTI: Percutaneous thrombin injection.
Wang, "Celiac artery stenting: a new strategy for patients with pancreaticoduodenal artery aneurysm associated with stenosis of the celiac artery," Journal of Gastroenterology, vol.
Moreover, there is a reduced intraoperative blood loss, due to an early ligation of the inferior pancreaticoduodenal artery [20, 40].

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