Middle cardiac vein is accompanied by
The middle cardiac vein commences at the apex of the hea; ascends in the posterior longitudinal sulcus along with posterior interventricular aery, and ends in the coronary sinus.Ref: V.S Volume 1; 2nd edition; Page: 276
Anterior interventricular aery
Left circumflex aery
Posterior Interventricular aery
Diagonal aery
Thorax