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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.


A vascular tube that carries blood away from the heart.


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 ?
The patients underwent cardiac and large artery investigations as follows: transthoracic echocardiography was performed in all patients, transesophageal echocardiography in four patients (5.1%), Doppler carotid ultrasonography in 71 patients (91%), three-dimensional MRI angiography (extracranial and intracranial) in 20 patients (25%), and digital subtraction angiography in three patients (3.8%).
Admission SBP ≥160 mmHg and large artery occlusion after IV rt-PA independently predicted END after IV rt-PA.
The most common stroke subtypes were large artery atherosclerosis (n=140; 59,6%), followed by small vessel disease (n=65,2;27,7%), undetermined etiology (n=23; 9,8%), cardioembolism (n=5;2,1%), and other determined etiology (n=2;0,9%).
The impact of increased arterial stiffness on all-cause and CV-related mortality among HD patients has been previously described, and it suggests that the strongest correlates of CV mortality among these patients relate to large artery structure and function [2, 9-12].
To extract a clot, a doctor inserts a catheter into a large artery in the groin, then threads it up to the brain, directed by real-time imaging.
This is usually insufficient when a large artery responsible for anterior cerebral circulation is blocked, however, in which case the addition of ET can be decisive.
They first address classification, pathology, and basic aspects, including definitions, the pathologic aspects of ischemic and hemorrhagic consequences, experimental animal models, sporadic and hereditary small vessel disease, the role of genetics, the link to large artery aging, and the neurovascular unit and possible influences, then discuss neuroimaging and laboratory aspects, including conventional imaging, nonconventional magnetic resonance techniques, cerebral hemodynamics, markers, and cerebral spinal fluid factors.
Ischemic stroke are divedided in thre subtype: large artery or atherosclerotic infarction, cardioembolic infarction and small vessel or lacunar infarctions.
This view is supported by the findings of Ahimastos et al who conducted a study to determine the gender differences in large artery stiffness in pre and post puberty stages (16).
According to TOAST classification, 18 (26.1%) patients with AF had large artery thrombosis; 43 (62.3%) had cardioembolism, and 8 (11.6%) had small vessel occlusion.
These are the same as for full-blown strokes, and include age, hypertension, atrial fibrillation (an irregular heart rate), smoking, obesity, carotid artery stenosis (narrowing of the carotid artery, the large artery whose pulse can be felt on both sides of the neck under the jaw), a personal history of stroke or heart attack, vascular disease, and heart disease.
Ischemic stroke can be caused by large artery atherosclerotic disease, small vessel or penetrating artery disease (lacunes), cardiogenic or artery-to-artery embolism, nonatherosclerotic vasculopathies, hypercoagulable disorders, or infarcts of undetermined causes.

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