Where is torus aoicus located: (A) Left atrium, (B) Right atrium, (C) Aoa, (D) Left ventricle
Answer is B. Torus aoicus is a buldge in the right atrial septum sited superiorly and anteriorly. It is produced due to adjacent nonocoronary aoic sinus at the base of ascending aoa. It is superior to coronary sinus and anterior to fossa ovalis.