artery

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Related to communicating artery: circle of Willis

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 ?
Our study is the first to use 3D CTA to report the prevalence of anatomic variants of the anterior cerebral artery and the anterior communicating artery in Mexican population.
The following table and pie diagram show the Presence and Absence of Posterior Communicating Artery.
Caption: Figure 2: (a) Three-dimensional digital subtraction angiography shows left posterior communicating artery aneurysm (arrow) and left persistent trigeminal artery (PTA) aneurysm (arrowhead).
Acute subdural hematoma from ruptured posterior communicating artery aneurysm.
Conclusion: Exact knowledge of the variation of Posterior communicating artery is essential not only to explain various neurological symptoms but also for successful micro-vascular surgery in this region.
2 mm) was recorded compared to the female population and higher values of the P1 segment of the posterior cerebral artery, while the rear communicating artery in females was 0.
In our case, we report a rare case of posterior communicating artery aneurysm presenting with writing apraxia.
CT findings and persistent bloody CSF led us to believe that the patient had an aneurysm at anterior communicating artery (AComA).
of California, San Francisco) details the basic concepts and tenets of aneurysm microsurgery, various craniotomies and exposures for successful clipping, and microsurgical anatomy, dissection strategies, and clipping techniques for each of the seven most common aneurysm types: posterior and anterior communicating artery, middle cerebral artery, ophthalmic artery, basilar bifurcation, pericallosal artery, and posterior inferior cerebellar artery aneurysms.
The primary routes of collateral circulation are the Willisian channels (anterior communicating artery, posterior communicating artery, and the ophthalmic via the external carotid artery).
In this sub-arachnoid space, the 3rd nerves pass either side of the midline basilar artery and between two of its major branches--the superior cerebellar and posterior cerebral arteries then just below and lateral to the posterior communicating artery, a key component of the arterial Circle of Willis.

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