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
[{'content': 'All of these form right heart border EXCEPT? \nSelect and explain. \nA. SVC, B. IVC, C. Right atrium, D. Right ventricle', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D Right ventricleRef: BDC, 6th ed. vol. I pg. 253; Keith L. Moore 5th ed. pg 147BORDERS OF HEART* Right border (slightly convex): Formed by the right atrium, SVC and the IVC.* Left border (nearly horizontal): Formed by the left ventricle and slightly by the left auricle.* Inferior border (oblique, nearly vertical), formed mainly by the right ventricle and slightly by the left ventricle.* Superior border: Formed by the right and left atria and auricles in an anterior view.', 'role': 'assistant'}]