artery

(redirected from Left main coronary artery)
Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms.
Related to Left main coronary artery: right coronary 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.
..... Click the link for more information.
. 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.
..... Click the link for more information.
, 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).
..... Click the link for more information.
, 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).
..... Click the link for more information.
 (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
..... Click the link for more information.
). 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.
..... Click the link for more information.
, 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 ?
There was a large dissection of the left main coronary artery with absence of flow on colour Doppler (Figures 1 and 2).
for the treatment of patients with multi- vessel disease, lesions in the left main coronary artery or patients with Diabetes Mellitus.
Percutaneous closure of complex fistulas between the left main coronary artery and right atrium.
French medical device maker Stentys' (FR0010949404 -- STNT) (PAR: STNT) Xposition S Sirolimus-eluting Self-Apposing stent has received CE Marking for the treatment of unprotected left main coronary artery disease on the basis of the results from a study published last year in the peer-reviewed journal Catheterization and Cardiovascular Interventions(CCI), the company said.
Left main coronary artery compression associated with primary pulmonary hypertension.
Resolute Onyx DES is well suited to treat large coronary vessels including the left main coronary artery with its optimal sizes and conformability in bifurcation lesions due to Continuous Sinusoid Technology.
It concluded that this technique is beneficial in patients presenting with acute and on-going ischaemia and those having tight left main coronary artery stenosis.
He was found to have an anomalous (anterior/superior) origin of the left main coronary artery with an intramural course within the wall of the aorta, and moderate left main stenosis.
Significant stenosis of the left main coronary artery was assigned as two-vessel disease.
Left main coronary artery disease is on of the most serious types of heart disease and it has typically been treated by heart bypass surgery.
Recommended indications include significant left main coronary artery stenosis, stenosis [greater than or equal to] =70% in the proximal left anterior descending (LAD) and proximal left circumflex artery, and 3-vessel coronary artery disease.