Torus Aoicus is present in: (A) Right Atrium, (B) Right Ventricle, (C) Left Ventricle, (D) Left Atrium
Answer is A. Torus aoicus is the prominent region of the right atrial septum, which marks the projection of the non-coronary aoic sinus into the right atrial wall. The bulge is superior to the coronary sinus and anterior to the fossa ovalisReference: Vishram Singh Anatomy; 2nd edition; Page no: 265