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