The Great and Middle Cardiac Veins Drain Blood into The

Question

The great and middle cardiac veins drain blood into the
A) superior vena cava.
B) inferior vena cava.
C) coronary sinus.
D) coronary sulcus.
E) aorta.

Accepted Answer

The great and middle cardiac veins drain blood from the myocardium of the heart and empty into the coronary sinus, which is a large vein located in the coronary sulcus on the posterior surface of the heart. The coronary sinus then empties into the right atrium of the heart. Therefore, the correct answer is C, which is the coronary sinus.