AEMCA Practice Exam

Which areas of the heart does the right coronary artery supply?

1. Right ventricle, anterior wall, and inferior left ventricle

2. Right ventricle, posterior wall, and inferior left ventricle

3. Left ventricle and septal wall

4. Right atrium and pulmonary veins

The correct answer is: Right ventricle, posterior wall, and inferior left ventricle

The right coronary artery is primarily responsible for supplying blood to various key areas of the heart. The correct answer highlights its supply to the right ventricle, posterior wall, and inferior left ventricle. The right ventricle receives its blood supply predominantly from the right coronary artery, which branches off to provide adequate perfusion. Furthermore, the artery also supplies the posterior wall of the heart, ensuring this region receives necessary oxygen and nutrients for proper function. In addition to these areas, it usually supplies the inferior portion of the left ventricle through the inferior interventricular artery (also known as the posterior descending artery) in individuals with a right-dominant coronary system, which is a common anatomy. The other options do not accurately represent the typical areas supplied by the right coronary artery. For instance, the role of supplying the anterior wall or the septal wall is usually associated with the left coronary system, which includes the left anterior descending (LAD) artery. The left ventricle primarily gets its blood from the left coronary artery, not the right. The right atrium is indeed supplied by the right coronary artery, but it does not encompass the comprehensive description provided in the correct choice.