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coronary artery

noun, Anatomy
1.
either of two arteries that originate in the aorta and supply the heart muscle with blood.
Origin
1735-1745
1735-45; so called from its crownlike envelopment of the heart
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for coronary artery
  • Narrowed arteries indicate the presence of coronary artery disease.
  • It showed that his left coronary artery had completely occluded.
  • Overweight and obesity have been linked to ailments ranging from coronary artery disease to some types of cancer.
  • The princess has thus become the oldest known case of coronary artery disease.
  • About a third of patients with coronary artery disease also have obstructive sleep apnea.
  • Follow your doctor's directions closely to help prevent coronary artery disease from getting worse.
  • It can help diagnose or exclude the presence of coronary artery disease and helps demonstrate how the heart works during exercise.
  • People with this condition have an increased risk for coronary artery disease and peripheral vascular disease.
  • They have an increased risk of early coronary artery disease and heart attacks.
  • Some people with severe coronary artery disease do not have angina pain.
British Dictionary definitions for coronary artery

coronary artery

noun
1.
either of two arteries branching from the aorta and supplying blood to the heart
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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coronary artery in Medicine

coronary artery n.

  1. An artery with origin in the right aortic sinus; with distribution to the right side of the heart in the coronary sulcus, and with branches to the right atrium and ventricle, including the atrioventricular branches and posterior interventricular branch; right coronary artery.

  2. An artery with its origin in the left aortic sinus; with distribution into two major branches, the anterior interventricular, which descends in the anterior interventricular sulcus, and the circumflex branch, which passes to the diaphragmatic surface of the left ventricle, and with the atrial, ventricular, and atrioventricular branches; left coronary artery.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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coronary artery in Science
coronary artery  
Either of two arteries that originate in the aorta and supply blood to the muscular tissue of the heart.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for coronary artery

one of two blood vessels that branch from the aorta close to its point of departure from the heart and carry oxygen-rich blood to the heart muscle. Both arteries supply blood to the walls of both lower chambers (ventricles) and to the partition between the chambers. The right coronary artery supplies blood to the right upper chamber (atrium), while the left supplies the left atrium. Blockage of any branch of the coronary arteries causes death of a portion of the heart tissue when it is deprived of oxygen-rich blood (see coronary heart disease).

Learn more about coronary artery with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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