Tendon of Todaro connects: (A) Coronary sinus to tricuspid valve annulus, (B) Ridge of muscle connecting IVC and SVC, (C) Valve in opening of IVC, (D) Raised interatrial ridge
Answer is A. Tendon of Todaro is a pa of Koch's triangle Base: ostium of coronary sinus Superior boundary: tendon of Todaro connects central fibrous body. Inferior boundary: septal cusp of tricuspid value. Apex: bundle of his & AV node.