Tendon of Todaro
| Tendon of Todaro | |
|---|---|
| Details | |
| Synonyms | tendon of inferior pyramidal space, tendon of valve of inferior vena cava |
| Identifiers | |
| Latin | tendo spatii pyramidalis inferioris (TA2) tendo valvulae venae cavae inferioris (TA98) |
| TA2 | 3981 |
| Anatomical terminology | |
The tendon of Todaro is part of the fibrous skeleton of the heart, located in the right atrium. It was described by Italian anatomist Francesco Todaro. It is a continuation of the Eustachian valve of the inferior vena cava and the Thebesian valve of the coronary sinus.
It delimits the antero-superior boundary of the triangle of Koch. The apex of Koch's triangle is the location of the atrioventricular node.
The tendon is near-impossible to locate in a living heart, so clinicians use other features to determine the boundaries of the Koch's triangle. Some cardiologists even go as far as rejecting the usefulness of the tendom as an anatomical landmark altogether.