Which coronary artery supplies the inferior wall of the heart?

Which coronary artery supplies the inferior wall of the heart?

• A. Left main coronary artery
• B. Right coronary artery
• C. Left anterior descending artery
• D. Left circumflex artery

Answer: (B)

The right coronary artery is responsible for supplying blood to the inferior wall of the heart, primarily through its branches, such as the posterior descending artery (PDA). In most individuals, particularly those with a right-dominant coronary circulation, the right coronary artery supplies the inferior portion of the heart, which includes the right atrium, right ventricle, and the inferior part of the left ventricle. The anatomy of coronary circulation is crucial for understanding how different areas of the heart receive oxygen-rich blood. In a right-dominant system, the right coronary artery provides supply to the inferior wall. In contrast, the left main coronary artery diverges into the left anterior descending artery and the left circumflex artery, which primarily supply the anterior wall and lateral segments of the heart, respectively. Thus, recognizing the specific arteries and their perfusion territories is essential for critical care nursing and cardiovascular assessments.

The right coronary artery is responsible for supplying blood to the inferior wall of the heart, primarily through its branches, such as the posterior descending artery (PDA). In most individuals, particularly those with a right-dominant coronary circulation, the right coronary artery supplies the inferior portion of the heart, which includes the right atrium, right ventricle, and the inferior part of the left ventricle.

The anatomy of coronary circulation is crucial for understanding how different areas of the heart receive oxygen-rich blood. In a right-dominant system, the right coronary artery provides supply to the inferior wall. In contrast, the left main coronary artery diverges into the left anterior descending artery and the left circumflex artery, which primarily supply the anterior wall and lateral segments of the heart, respectively. Thus, recognizing the specific arteries and their perfusion territories is essential for critical care nursing and cardiovascular assessments.