Which vessels collect deoxygenated blood from heart muscle tissue and empty into the right atrium?

• A. Coronary Arteries
• B. Cardiac Veins
• C. Coronary Sinus
• D. Superior Vena Cava

Answer: (B)

The heart’s muscle tissue returns deoxygenated blood via a network of cardiac veins. These veins collect the blood from the myocardium and typically drain into the coronary sinus, which then empties into the right atrium. Some small anterior cardiac veins drain directly into the right atrium as well. This venous drainage path is distinct from the arteries that bring oxygen-rich blood to the heart muscle and from the superior vena cava, which handles systemic venous return to the right atrium. So, the vessels that collect the deoxygenated blood from heart muscle tissue and deliver it to the right atrium are the cardiac veins.