Source:http://linkedlifedata.com/resource/umls/id/C0456944
CSP: terminal portion of the great cardiac vein, which lies in the coronary sulcus between the left atrium and ventricle, and empties in the right atrium between the orifice of the inferior vena cava and the atrioventricular orifice.,MSH: A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures.,FMA: Trunk of systemic vein which is formed by the union of the great cardiac vein and the left marginal vein and terminates in the right atrium.