The small cardiac vein runs in the coronary sulcus between the right atrium and ventricle and opens into the right extremity of the coronary sinus.It receives blood from the back of the right atrium and ventricle.It may drain to the coronary sinus right atrium middle cardiac vein or be absent.
This page contains content from the copyrighted Wikipedia article "Small cardiac vein"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.