Where is the chiari network located in the heart?

The Chiari network is a fibrous structure that is primarily found in the right atrium of the heart. It is considered a remnant of the embryonic development of the heart and is formed by the webbing of pectinate muscles. This network can be visualized as a lattice-like structure within the right atrium, and it may vary in size and prominence from person to person.

The reason why the right atrium is the correct location is due to its association with the venous return of blood from the body, especially considering its role in accommodating various anatomical features related to the right heart's function. The Chiari network can also be a source of potential embolic events, particularly when it relates to thrombus formation, hence its clinical significance. This understanding of its location helps in both normal and abnormal echocardiographic evaluations.