This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Crista terminalis is present in ? 
Select and explain. 
A. Left atrium, B. Left ventricle, C. Right atrium, D. Right ventricle
C: Right atrium
Answer: C: Right atrium 
Explanation: Crista terminalis (divides the right atrium into anterior and posterior pa) is a ridge of smooth muscle fibers extending from the SVC to valve of IVC. It is developed from embryonic right venous valve and is represented on the surface by sulcus terminalis.