Interatrial septum

This section is about
Structures of the Heart

The interatrial septum is the part of the structure (anatomy) of the heart that separates the left atrium from the right atrium.

It takes the form of a thin partition between the two atria.

(In the same way as the interatrial septum separates the right- and left- atria, the interventricular septum separates the left ventricle from the right ventricle within the structure of the heart.)

More about the heart and blood circulation:
See the following for more about the heart, blood, blood circulation, disorders of the blood circulation system, and related topics.

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