What does the Left Coronary Artery supply?

What does the Left Coronary Artery supply?

• A. Left atrium and ventricle, and the anterior surface of both ventricles
• B. Right atrium and right ventricle
• C. Posterior surfaces only
• D. The lungs

Answer: (A)

The left coronary artery serves the left side of the heart, mainly supplying the left atrium and left ventricle through its two main branches. The anterior interventricular branch (LAD) runs along the front of the heart to feed the anterior wall of the left ventricle and most of the interventricular septum, while the circumflex branch supplies the left atrium and the lateral/posterior aspects of the left ventricle. Taken together, the left atrium and ventricle receive their blood supply from the left coronary system, including the anterior surfaces of the ventricles. The lungs aren’t nourished by coronary arteries, and the right atrium and right ventricle are primarily fed by the right coronary artery.

The left coronary artery serves the left side of the heart, mainly supplying the left atrium and left ventricle through its two main branches. The anterior interventricular branch (LAD) runs along the front of the heart to feed the anterior wall of the left ventricle and most of the interventricular septum, while the circumflex branch supplies the left atrium and the lateral/posterior aspects of the left ventricle. Taken together, the left atrium and ventricle receive their blood supply from the left coronary system, including the anterior surfaces of the ventricles. The lungs aren’t nourished by coronary arteries, and the right atrium and right ventricle are primarily fed by the right coronary artery.