PREVIOUS QUESTION:

 

NEXT QUESTION:

 

What are the two major coronary arteries?

ANSWER

Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet:

These arteries and their branches supply all parts of the heart muscle with blood.

  • Right coronary artery supplies the right atrium and right ventricle with blood. It branches into the posterior descending artery, which supplies the bottom portion of the left ventricle and back of the septum with blood.
  • Left main coronary artery branches into the circumflex artery and the left anterior descending artery. The circumflex artery supplies blood to the left atrium, as well as the side and back of the left ventricle. The left anterior descending artery supplies the front and bottom of the left ventricle and the front of the septum with blood.

From: How Your Heart Works WebMD Medical Reference

SOURCE: National Heart Blood Lung Institute, National Institutes of Health.

Reviewed by James Beckerman on November 08, 2017

SOURCE: National Heart Blood Lung Institute, National Institutes of Health.

Reviewed by James Beckerman on November 08, 2017

NEXT QUESTION:

What happens when coronary arteries narrow?

WAS THIS ANSWER HELPFUL

THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

    This tool does not provide medical advice. See additional information.