Question

What lies in the anterior interventricular sulcus and drains the walls of both ventricles and the left atrium?

1) Coronary sinus
2) Great cardiac vein
3) Small cardiac vein
4) Middle cardiac vein

Answer 1

The great cardiac vein is the vessel that lies in the anterior interventricular sulcus, draining the walls of both ventricles and the left atrium before merging with the coronary sinus.

Step-by-step explanation:

The great cardiac vein is the vessel that lies in the anterior interventricular sulcus, draining the walls of both ventricles and the left atrium before merging with the coronary sinus.

The structure that lies in the anterior interventricular sulcus and drains the walls of both ventricles and the left atrium is the great cardiac vein. The great cardiac vein follows the path of the anterior interventricular artery, carrying deoxygenated blood from the heart muscle to eventually merge with the coronary sinus on the posterior surface of the heart. The coronary sinus then empties directly into the right atrium, completing the cardiac venous drainage system.