Archives for April 2024

Sinus of venae cavae is another name for the venous component of the RA where the superior vena cava and the inferior vena cava drain into the right atrium.

The smooth part of right atrium, also referred to as the venous component of the right atrium, has a smooth wall and is positioned behind crista terminalis. It receives the superior vena cava, inferior vena cava, and the coronary sinus at its junction with the atrial septum.

The pectinate muscles of right atrium are specialized muscular bands extending over the right atrium wall and within the right atrial appendage. Their name comes from their comb-like appearance.

The right auricle of heart, also referred to as the right atrial appendage, is a triangular-shaped structure that displays raised muscular bands known as pectinate muscles.

The cavotricuspid isthmus is the area between the opening of inferior vena cava and the tricuspid valve.