azygos vein

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Related to Arch of the azygos vein: hemiazygos vein

azygos

 [az´ĭ-gos]
any unpaired part, as the azygos vein.
azygos vein a vein beginning in the abdomen as a continuation of the ascending lumbar vein; it and its tributaries serve as vessels for the return of blood from the thorax to the superior vena cava. The azygos vein also serves as a connecting link, through the ascending lumbar vein, between the venae cavae returning blood from above and below the heart. See anatomic Table of Veins in the Appendices.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

az·y·gos vein

[TA]
vein arising from the merger of the right ascending lumbar vein with the right subcostal vein and often a communication with the inferior vena cava; ascends through the aortic hiatus of the diaphragm or its right crus; it runs along the right side of the thoracic vertebral bodies in the posterior mediastinum, and terminates by arching anteriorly over the root of the right lung to enter the posterior aspect of the superior vena cava.
Synonym(s): vena azygos [TA], azygos (2) , vena azygos major
Farlex Partner Medical Dictionary © Farlex 2012

az·y·gos vein

(az'i-gŏs vān) [TA]
Arises from the merger of the right ascending lumbar vein with the right subcostal vein and often a communication with the inferior vena cava; ascends through the aortic hiatus of the diaphragm or its right crus; it runs along the right side of the thoracic vertebral bodies in the posterior mediastinum, and terminates by arching anteriorly over the root of the right lung to enter the posterior aspect of the superior vena cava.
Synonym(s): azygos (2) .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012