Small cardiac vein
Base and diaphragmatic surface of heart (small cardiac vein labeled at lower right.)
Drains toCoronary sinus
Latinvenae cardiacae minimae,
vena cordis parva
Anatomical terminology

The small cardiac vein, also known as the right coronary vein,[1] is a coronary vein that drains parts of the right atrium and right ventricle of the heart.[2] Despite its size, it is one of the major drainage vessels for the heart.[3]



The small cardiac vein runs in the coronary sulcus between the right atrium and right ventricle, and opens into the right extremity of the coronary sinus.[1][2]


The small cardiac vein receives blood from the posterior portion of the right atrium and ventricle.[2]


The small cardiac vein may empty into the coronary sinus, right atrium, or middle cardiac vein. It may be absent.[4]


Public domain This article incorporates text in the public domain from page 642 of the 20th edition of Gray's Anatomy (1918)

  1. ^ a b Petrellis, Basilios; Skanes, Allan C.; Klein, George J.; Krahn, Andrew D.; Yee, Raymond (2011-01-01), Stephen Huang, Shoei K.; Wood, Mark A. (eds.), "25 - Special Problems in Ablation of Accessory Pathways", Catheter Ablation of Cardiac Arrhythmias (Second Edition), Saint Louis: W.B. Saunders, pp. 425–443, doi:10.1016/b978-1-4377-1368-8.00025-8, ISBN 978-1-4377-1368-8, retrieved 2020-11-18
  2. ^ a b c Issa, Ziad F.; Miller, John M.; Zipes, Douglas P. (2019-01-01), Issa, Ziad F.; Miller, John M.; Zipes, Douglas P. (eds.), "27 - Epicardial Ventricular Tachycardia", Clinical Arrhythmology and Electrophysiology (Third Edition), Philadelphia: Elsevier, pp. 907–924, doi:10.1016/b978-0-323-52356-1.00027-x, ISBN 978-0-323-52356-1, retrieved 2020-11-18
  3. ^ Ho, Siew Yen (2017-01-01), Ellenbogen, Kenneth A.; Wilkoff, Bruce L.; Kay, G. Neal; Lau, Chu-Pak (eds.), "1 - Cardiac Anatomy and Pathology", Clinical Cardiac Pacing, Defibrillation and Resynchronization Therapy (Fifth Edition), Elsevier, pp. 3–14, doi:10.1016/b978-0-323-37804-8.00001-8, ISBN 978-0-323-37804-8, retrieved 2020-11-18
  4. ^ Paul A. Iaizzo (7 July 2009). Handbook of Cardiac Anatomy, Physiology, and Devices. Springer. pp. 83–. ISBN 978-1-60327-371-8. Retrieved 31 October 2010.