left main coronary artery

Origin: left coronary sinus Branches: 1) left anterior descending artery (LAD) 2) left circumflex artery Course: -> passes between the pulmonary artery & the left atrium, then divides immediately into the left anterior descending & left circumflex arteries Pathology: - 50% stenosis of the left main coronary artery is considered angiographically significant coronary artery disease.

General

artery heart structure

Properties

FORM: left main coronary artery BRANCHES: left anterior descending [LAD] coronary artery (anterior interventricular artery) left circumflex coronary artery ORIGIN: aortic sinus

References

Internal Medicine, J Stein (ed), Little, Brown, Boston, 1983