sinuatrial (SA) nodal artery

Origin: (variable) 1) right (90%), near the origin of the posterior descending branch 2) left coronary artery (10%) Distrubution: right atrium, including the SA node

General

artery heart structure

Properties

FORM: sinuatrial (SA) nodal artery ORIGIN: right coronary artery (RCA) left main coronary artery

References

Grant's Atlas of Anatomy, 10th edition, AMR Agur & MJ Lee (eds), Lippincott Williams & Wilkins, Philadelphia, 1999