artery


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Related to artery: carotid artery, coronary artery, pulmonary artery

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 ?
Proatlantal intersegmental arteries of external carotid artery origin associated with Galen's vein malformation.
Clinical findings alone are not sufficient in the diagnosis of anomalous origin of the left coronary artery from the pulmonary artery.
As far as we know, our case with a combination of the two coronary artery anomalies is the first report in the literature, in which type 2 dual LAD artery and absent Cx has been described in the same patient.
If recurrent or persistent severe posterior epistaxis should occur following internal maxillary and anterior ethmoid artery ligation, Lander and Terry suggest that the source of the bleeding might be the posterior ethmoid artery.
Combining tension, inflation, and torsion in a single test provides the comprehensive representation of material behavior, but a good test to approximate the functionality of the hypertensive pulmonary artery is the bubble test.
Briefly, the pulmonary artery and the left atrium were cannulated for monitoring the mean pulmonary artery pressure and the left atrial pressure, respectively.
His right lingual artery was seen to be thrombosed without evidence of direct tumor invasion, so it is probable that thrombosis of this vessel occurred at the time of his original laryngectomy 25 years earlier.
The whole issue with angioplasty is artery reclogging and, given the exponential growth of angioplasty and stenting arteries, it would be of great interest to know that something as simple as vitamin C could prevent'' this condition, said Dr.
We believe that the GenESA System has the potential to be the first pharmacological stress test to be approved for use in conjunction with all three major modalities for testing for coronary artery disease," said David F.
Company's Flagship Device Approved for Use in Coronary Artery Disease