Interatrial septum — Free Anatomy Illustration | GPAI | GPAI

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Interatrial septum — Free Anatomy Illustration | GPAI | GPAI

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Interatrial septum

Interatrial septum

Anatomy

Interatrial septum

Thin vertical muscular partition separating the right and left atria, shown from the heart interior as a broad, slightly curved sheet-like wall of pale pink to pink-red cardiac tissue. The surface is smooth and flat-faced with endocardial lining, with subtle muscular texture and the fossa ovalis visible centrally.

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