Auricula Atrii ✮

: The right atrial appendage (RAA) specifically helps manage blood volume by releasing certain proteins. Clinical Importance

The , commonly known as the atrial appendage or auricle of the heart , is a small, muscular, ear-shaped pouch that projects from each of the heart's two upper chambers (atria). Key Anatomical Features auricula atrii

: They act as "reservoirs" that can expand to increase the capacity of the atria during periods of high cardiac output or when blood flows quickly back to the heart. : The right atrial appendage (RAA) specifically helps