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
All the following vessels end directly in the right atrium except 
Select and explain. 
A. Coronary sinus, B. Oblique vein of left atrium, C. Anterior cardiac vein, D. Venae cordis minimae
B: Oblique vein of left atrium
Answer: B: Oblique vein of left atrium 
Explanation: Superior vene cava, inferior vene cava,coronary sinus, anterior cardiac veins ,vene cordis minimi. these are the veins that directly open to right atrium. BD CHAURASIA'S HUMAN ANATOMY.VOLUME 1.6 TH EDITION.PAGE NO 255