Boundary of the Kochs triangle is not formed by-: (A) Tricuspid valve ring, (B) Coronary sinus, (C) Tendon of todaro, (D) Limbus fossa ovalis
Answer is D. Boundaries of triangle of Koch
-        Superior- Tendon of Todaro
-        Inferior- Septal leaflet of Tricuspid valve
-        Basal- Coronary sinus orifice