What areas does the RCA primarily feed?

The RCA, or right coronary artery, primarily supplies blood to the right atrium, right ventricle, and the inferior wall of the left ventricle. This is especially relevant in individuals with a right dominant coronary system, which is the most common anatomical configuration.

The right coronary artery branches off into several important arteries. Among these branches, the right posterior descending artery (PDA) typically supplies the inferior wall of the left ventricle and the inferior portion of the interventricular septum, which directly corresponds to the inferior wall's needs. Additionally, the RCA helps supply the right atrium and the right ventricle, making it crucial for overall cardiac function.

This choice highlights the essential areas served by the RCA and accounts for the overarching blood flow necessary for the heart's performance. Understanding the vascular supply of the heart is essential for diagnosing and managing various cardiac conditions, as ischemia in any of these fed regions can lead to significant clinical implications.