Quick Facts
Origin: The cardiac apex.
Course: Superiorly within the posterior interventricular sulcus.
Tributaries: Small unnamed veins.
Drainage: Inferior (diaphragmatic) surface of the heart.
Origin
The middle cardiac vein originates at the cardiac apex.
Course
The middle cardiac vein courses superiorly within the posterior interventricular groove and drains into the coronary sinus. Within in the posterior interventricular groove, it is accompanied by the posterior interventricular artery.
Tributaries
The middle cardiac vein is formed by the union of small unnamed veins.
Structures Drained
The middle cardiac vein drains the inferior (diaphragmatic) surface of the heart.
