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Interatrial septum (atrial septum)

Other Terms: Interatrial septal wall, Septum interatriale, Septum interatrial

Description

The interatrial septum separates the left and right atria of the heart. Upon this, a little above the opening of the inferior vena cava, is an oval depression, called the fossa ovale, with a very thin floor. This marks the site of the foramen ovale of the fetal heart. The limbus of fossa ovalis is the surrounding ridge that is incomplete below.

Latin

Septum interatriale

French

Septum interatrial

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