Crista terminalis is present in ?: (A) Left atrium, (B) Left ventricle, (C) Right atrium, (D) Right ventricle
Answer is C. 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.