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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.
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The coronary arteries play a crucial role in maintaining the function of the cardiac muscle by delivering oxygen and other nutrients. The anterior right atrial arteries (ARAA) originate from the right coronary artery (RCA), which emerges from the anterior ascending aorta. The ARAA primarily supplies blood to the anterior portion of the right atrium and secondarily supplies the inter-atrial groove and part of the left atrium.[1][2] In over half of the population, the sinoatrial nodal (SAN) artery originates from the anterior right atrial branch.[1][3] Therefore, clinicians and surgeons need to develop a sound understanding of atrial artery anatomy due to their potential involvement in atrial diseases such as tachyarrhythmias.