This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
The vein in the cardiac anterior interventricular groove is 
Select and explain. 
A. Great Cardiac Vein, B. Anterior cardiac vein, C. Posterior cardiac vein, D. Thebesian vein
A: Great Cardiac Vein
Answer: A: Great Cardiac Vein 
Explanation: The Great cardiac vein accompanies first the anterior interventricular aery and then the left coronary aery to enter the left end of the coronary sinus. B D CHAURASIA'S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME-1 FIFTH EDITION Page no-254