Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Septum, atrial
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Septum, atrial: The wall between the right and left atria (the upper chambers) of the heart. Also known as interatrial septum.