Interatrial sulcus

Interatrial Sulcus is a structure found in the heart that separates the two atria. It is a shallow depression on the external surface of the heart, and it marks the internal position of the interatrial septum.

Etymology

The term "Interatrial Sulcus" is derived from Latin. "Inter-" means between, "atrial" refers to the atria of the heart, and "sulcus" is Latin for groove or furrow.

Anatomy

The Interatrial Sulcus is located on the anterior surface of the heart, running in a horizontal direction. It separates the right and left atria, marking the position of the interatrial septum which divides the two atria internally.

Clinical Significance

The Interatrial Sulcus can be of clinical significance in certain medical conditions. For instance, in the case of an atrial septal defect, a hole in the interatrial septum, the sulcus may be involved. It can also be a landmark in certain surgical procedures involving the heart.

Related Terms

• Atria: The two upper chambers of the heart.
• Interatrial Septum: The wall of tissue that separates the right and left atria of the heart.
• Atrial Septal Defect: A birth defect of the heart in which there is a hole in the wall (septum) that divides the upper chambers of the heart.

See Also

• Heart
• Cardiology
• Anatomy

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