artery

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Related to axillary artery: axillary vein, brachial artery, subclavian 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.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

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 ?
For the axillary images, the positions of the median, ulnar and radial nerves were analysed using a quadrant template arranged around the axillary artery (6).
Both of them were formed by three lateral roots and one medial root anterior to the 3rd part of the axillary artery. One of them had its proximal two lateral roots crossing the 2nd part of the axillary artery to join the medial root just medial to the second part of the axillary artery.
Variations in the branching pattern of Axillary artery noted by previous workers are: In a report by Ravindra s.
It was reported that in domestic birds, the axillary artery was an independent branch of the subclavian artery and not as in mammals, the continuation of that vessel (Nickel et al.).
During a routine educational dissection, a rare branching pattern of right axillary artery was found in a 74-year-old Korean female cadaver.
The left shoulder dissection is shown such that it is possible to identify the trocar (T), axillary artery (A), the deltoid branch of the thoracoacromial artery (R), and the coracoid process (C).
It was observed that in the right upper limb, the lateral thoracic artery, thoraco-dorsal, circumflex scapular and posterior circumflex scapular artery arises from a common trunk from the second part of axillary artery underneath the pectoralis minor muscle (picture 1).
In subclavian and axillary artery variations, is important to consider the stage 16 of development (8-11 mm; 37 d).
Of arteries that arise in the arm the name accessory brachial artery can be given if the artery originates from the brachial or axillary artery and rejoins the brachial artery in the distal third of the arm before it divides into the usual forearm arteries.
The blood supply of the proximal humerus is provided mainly by the circumflex humeral arteries, which branch off the axillary artery. The ascending branch running through the area of the bicipital groove is significant as it also flows through a substantial part of the calvaria.
The axillary artery, a continuation of the subclavian artery, begins at the outer border of the first rib, and ends normally at the inferior border of teres major muscle where onwards it continues as the brachial artery.
(4) Post-stenotic dilatation leads to aneurysmal changes, which begin in the distal subclavian artery and extend into the proximal axillary artery. This leads to intimal damage and thrombus formation which may become dislodged and embolise distally.