This site is intended for healthcare professionals
General Practice Notebook
Medical search

left anterior descending artery (heart, anatomy)

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

The anterior interventricular artery, often clinically termed the left anterior descending artery, is a branch of the left coronary artery. It originates at the left margin of the pulmonary trunk, anterior to the left atrial auricle. It descends on the sternocostal surface of the heart within the anterior interventricular groove. During this course it may give off several branches e.g.:

  • left conus artery
  • ventricular arteries:
    • septal - supply the interventricular septum
    • diagonal - supply the left ventricle

Within the groove, the anterior interventricular artery passes around the inferior border of the heart. On the inferior surface of the heart it anastomoses with the posterior interventricular branch of the right coronary artery.

The anterior interventricular artery supplies the:

  • left ventricle
  • right ventricle - small section of outflow tract
  • interventricular septum

The left anterior descending artery is the one most commonly affected by disease, predominantly atherosclerotic narrowing.


General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.