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.
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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 ?
Caption: FIGURE 5: Images of the standard of care protocol and study protocols A and B with the mean CT value, SNR, and CNR of the right coronary artery (RCA) (a), left circumflex artery (LCx) (b), and the left anterior descending artery (LAD) (c).
Prognostic outcomes of patients with acute myocardial infarction due to left anterior descending artery LAD and right coronary artery RCA has been well studied but prognostic outcome of left circumflex artery LCx related acute inferior wall MI is not much clear.
In this case report, we describe a rare case of incidentally detected congenitally absent left circumflex artery.
Caption: Figure 1: Left coronary angiography demonstrating severe stenosis of the left circumflex artery and CTO of the LAD.
Left anterior descending (LAD) was the commonest infarct related artery accounting for culprit artery in 1115 (56.1%) followed by right coronary artery (RCA) and left circumflex artery (LCX) in 659 (33.2%) and 174 (8.8%) cases respectively with the p value of <0.001.
Table 4: Distribution of Cases of Coronary Artery Anomalies Types of cases Number Origin of the circumflex artery from the right coronary sinus 2 Separate origin of the left anterior descending artery and 2 circumflex artery from the left coronary sinus Anomalous left coronary artery arising from right sinus of 1 valsalva Anomalous left coronary artery originating from pulmonary 1 artery (ALCAPA) Congenitally absent left circumflex artery 1 Myocardial bridging (Anomaly of intrinsic coronary arterial 9 anatomy) TOTAL 16 REFERENCES:
The mid and distal segments of the right coronary artery were 100%, left circumflex artery was 70-80% and left anterior decending artery was 70-90% occluded.
Coronary angiography demonstrated 90% osteal stenosis of left anterior descending artery, 70% stenosis of left circumflex artery, and 80% stenosis of right coronary artery.
However, some CTO lesions involve the ipsilateral collateral artery, such as the left anterior descending artery (LAD) to the left circumflex artery (LCX) or bridge collateral arteries.
The gold standard treatment for left main coronary artery (LMCA) stenosis is the emergency coronary artery bypass grafting to its branches, left anterior descending artery (LAD), and left circumflex artery (LCX).
Urgent coronary angiography was preformed which identified no crucial stenosis in the left anterior descending artery, left circumflex artery, and posterior descending artery.